21818412

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{463}}^1$

素因数の和:508

約数の個数: 144

約数和(自身を含む): 72963072

約数和(自身を除く): 51144660

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 17, 18, 21, 22, 28, 33, 34, 36, 42, 44, 51, 63, 66, 68, 77, 84, 99, 102, 119, 126, 132, 153, 154, 187, 198, 204, 231, 238, 252, 306, 308, 357, 374, 396, 462, 463, 476, 561, 612, 693, 714, 748, 924, 926, 1071, 1122, 1309, 1386, 1389, 1428, 1683, 1852, 2142, 2244, 2618, 2772, 2778, 3241, 3366, 3927, 4167, 4284, 5093, 5236, 5556, 6482, 6732, 7854, 7871, 8334, 9723, 10186, 11781, 12964, 15279, 15708, 15742, 16668, 19446, 20372, 23562, 23613, 29169, 30558, 31484, 35651, 38892, 45837, 47124, 47226, 55097, 58338, 61116, 70839, 71302, 86581, 91674, 94452, 106953, 110194, 116676, 141678, 142604, 165291, 173162, 183348, 213906, 220388, 259743, 283356, 320859, 330582, 346324, 427812, 495873, 519486, 606067, 641718, 661164, 779229, 991746, 1038972, 1212134, 1283436, 1558458, 1818201, 1983492, 2424268, 3116916, 3636402, 5454603, 7272804, 10909206, 21818412]

約数ペア:

[(1, 21818412), (2, 10909206), (3, 7272804), (4, 5454603), (6, 3636402), (7, 3116916), (9, 2424268), (11, 1983492), (12, 1818201), (14, 1558458), (17, 1283436), (18, 1212134), (21, 1038972), (22, 991746), (28, 779229), (33, 661164), (34, 641718), (36, 606067), (42, 519486), (44, 495873), (51, 427812), (63, 346324), (66, 330582), (68, 320859), (77, 283356), (84, 259743), (99, 220388), (102, 213906), (119, 183348), (126, 173162), (132, 165291), (153, 142604), (154, 141678), (187, 116676), (198, 110194), (204, 106953), (231, 94452), (238, 91674), (252, 86581), (306, 71302), (308, 70839), (357, 61116), (374, 58338), (396, 55097), (462, 47226), (463, 47124), (476, 45837), (561, 38892), (612, 35651), (693, 31484), (714, 30558), (748, 29169), (924, 23613), (926, 23562), (1071, 20372), (1122, 19446), (1309, 16668), (1386, 15742), (1389, 15708), (1428, 15279), (1683, 12964), (1852, 11781), (2142, 10186), (2244, 9723), (2618, 8334), (2772, 7871), (2778, 7854), (3241, 6732), (3366, 6482), (3927, 5556), (4167, 5236), (4284, 5093)]