19864845

素因数分解:

$3^4\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1$

素因数の和:62

約数の個数: 160

約数和(自身を含む): 48787200

約数和(自身を除く): 28922355

約数列:

[1, 3, 5, 7, 9, 11, 13, 15, 21, 27, 33, 35, 39, 45, 49, 55, 63, 65, 77, 81, 91, 99, 105, 117, 135, 143, 147, 165, 189, 195, 231, 245, 273, 297, 315, 343, 351, 385, 405, 429, 441, 455, 495, 539, 567, 585, 637, 693, 715, 735, 819, 891, 945, 1001, 1029, 1053, 1155, 1287, 1323, 1365, 1485, 1617, 1715, 1755, 1911, 2079, 2145, 2205, 2457, 2695, 2835, 3003, 3087, 3185, 3465, 3773, 3861, 3969, 4095, 4455, 4459, 4851, 5005, 5145, 5265, 5733, 6237, 6435, 6615, 7007, 7371, 8085, 9009, 9261, 9555, 10395, 11319, 11583, 12285, 13377, 14553, 15015, 15435, 17199, 18865, 19305, 19845, 21021, 22295, 24255, 27027, 27783, 28665, 31185, 33957, 35035, 36855, 40131, 43659, 45045, 46305, 49049, 51597, 56595, 57915, 63063, 66885, 72765, 81081, 85995, 101871, 105105, 120393, 135135, 138915, 147147, 169785, 189189, 200655, 218295, 245245, 257985, 305613, 315315, 361179, 405405, 441441, 509355, 567567, 601965, 735735, 945945, 1324323, 1528065, 1805895, 2207205, 2837835, 3972969, 6621615, 19864845]

約数ペア:

[(1, 19864845), (3, 6621615), (5, 3972969), (7, 2837835), (9, 2207205), (11, 1805895), (13, 1528065), (15, 1324323), (21, 945945), (27, 735735), (33, 601965), (35, 567567), (39, 509355), (45, 441441), (49, 405405), (55, 361179), (63, 315315), (65, 305613), (77, 257985), (81, 245245), (91, 218295), (99, 200655), (105, 189189), (117, 169785), (135, 147147), (143, 138915), (147, 135135), (165, 120393), (189, 105105), (195, 101871), (231, 85995), (245, 81081), (273, 72765), (297, 66885), (315, 63063), (343, 57915), (351, 56595), (385, 51597), (405, 49049), (429, 46305), (441, 45045), (455, 43659), (495, 40131), (539, 36855), (567, 35035), (585, 33957), (637, 31185), (693, 28665), (715, 27783), (735, 27027), (819, 24255), (891, 22295), (945, 21021), (1001, 19845), (1029, 19305), (1053, 18865), (1155, 17199), (1287, 15435), (1323, 15015), (1365, 14553), (1485, 13377), (1617, 12285), (1715, 11583), (1755, 11319), (1911, 10395), (2079, 9555), (2145, 9261), (2205, 9009), (2457, 8085), (2695, 7371), (2835, 7007), (3003, 6615), (3087, 6435), (3185, 6237), (3465, 5733), (3773, 5265), (3861, 5145), (3969, 5005), (4095, 4851), (4455, 4459)]