221423895

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1$

素因数の和:235

約数の個数: 192

約数和(自身を含む): 531878400

約数和(自身を除く): 310454505

約数列:

[1, 3, 5, 7, 9, 11, 15, 17, 21, 27, 33, 35, 45, 49, 51, 55, 63, 77, 85, 99, 105, 119, 135, 147, 153, 165, 179, 187, 189, 231, 245, 255, 297, 315, 357, 385, 441, 459, 495, 537, 539, 561, 595, 693, 735, 765, 833, 895, 935, 945, 1071, 1155, 1253, 1309, 1323, 1485, 1611, 1617, 1683, 1785, 1969, 2079, 2205, 2295, 2499, 2685, 2695, 2805, 3043, 3213, 3465, 3759, 3927, 4165, 4833, 4851, 5049, 5355, 5907, 6265, 6545, 6615, 7497, 8055, 8085, 8415, 8771, 9129, 9163, 9845, 10395, 11277, 11781, 12495, 13783, 14553, 15215, 16065, 17721, 18795, 19635, 21301, 22491, 24165, 24255, 25245, 26313, 27387, 27489, 29535, 33473, 33831, 35343, 37485, 41349, 43855, 45645, 45815, 53163, 56385, 58905, 63903, 68915, 72765, 78939, 82161, 82467, 88605, 96481, 100419, 106505, 112455, 124047, 131565, 136935, 137445, 149107, 167365, 169155, 176715, 191709, 206745, 234311, 236817, 247401, 265815, 289443, 301257, 319515, 372141, 394695, 410805, 412335, 447321, 482405, 502095, 575127, 620235, 702933, 745535, 868329, 903771, 958545, 1171555, 1184085, 1237005, 1341963, 1447215, 1506285, 1640177, 1860705, 2108799, 2236605, 2604987, 2875635, 3514665, 4025889, 4341645, 4518855, 4920531, 6326397, 6709815, 8200885, 10543995, 13024935, 14761593, 20129445, 24602655, 31631985, 44284779, 73807965, 221423895]

約数ペア:

[(1, 221423895), (3, 73807965), (5, 44284779), (7, 31631985), (9, 24602655), (11, 20129445), (15, 14761593), (17, 13024935), (21, 10543995), (27, 8200885), (33, 6709815), (35, 6326397), (45, 4920531), (49, 4518855), (51, 4341645), (55, 4025889), (63, 3514665), (77, 2875635), (85, 2604987), (99, 2236605), (105, 2108799), (119, 1860705), (135, 1640177), (147, 1506285), (153, 1447215), (165, 1341963), (179, 1237005), (187, 1184085), (189, 1171555), (231, 958545), (245, 903771), (255, 868329), (297, 745535), (315, 702933), (357, 620235), (385, 575127), (441, 502095), (459, 482405), (495, 447321), (537, 412335), (539, 410805), (561, 394695), (595, 372141), (693, 319515), (735, 301257), (765, 289443), (833, 265815), (895, 247401), (935, 236817), (945, 234311), (1071, 206745), (1155, 191709), (1253, 176715), (1309, 169155), (1323, 167365), (1485, 149107), (1611, 137445), (1617, 136935), (1683, 131565), (1785, 124047), (1969, 112455), (2079, 106505), (2205, 100419), (2295, 96481), (2499, 88605), (2685, 82467), (2695, 82161), (2805, 78939), (3043, 72765), (3213, 68915), (3465, 63903), (3759, 58905), (3927, 56385), (4165, 53163), (4833, 45815), (4851, 45645), (5049, 43855), (5355, 41349), (5907, 37485), (6265, 35343), (6545, 33831), (6615, 33473), (7497, 29535), (8055, 27489), (8085, 27387), (8415, 26313), (8771, 25245), (9129, 24255), (9163, 24165), (9845, 22491), (10395, 21301), (11277, 19635), (11781, 18795), (12495, 17721), (13783, 16065), (14553, 15215)]