21915684

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{3221}}^1$

素因数の和:3247

約数の個数: 72

約数和(自身を含む): 65677248

約数和(自身を除く): 43761564

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 162, 189, 243, 252, 324, 378, 486, 567, 756, 972, 1134, 1701, 2268, 3221, 3402, 6442, 6804, 9663, 12884, 19326, 22547, 28989, 38652, 45094, 57978, 67641, 86967, 90188, 115956, 135282, 173934, 202923, 260901, 270564, 347868, 405846, 521802, 608769, 782703, 811692, 1043604, 1217538, 1565406, 1826307, 2435076, 3130812, 3652614, 5478921, 7305228, 10957842, 21915684]

約数ペア:

[(1, 21915684), (2, 10957842), (3, 7305228), (4, 5478921), (6, 3652614), (7, 3130812), (9, 2435076), (12, 1826307), (14, 1565406), (18, 1217538), (21, 1043604), (27, 811692), (28, 782703), (36, 608769), (42, 521802), (54, 405846), (63, 347868), (81, 270564), (84, 260901), (108, 202923), (126, 173934), (162, 135282), (189, 115956), (243, 90188), (252, 86967), (324, 67641), (378, 57978), (486, 45094), (567, 38652), (756, 28989), (972, 22547), (1134, 19326), (1701, 12884), (2268, 9663), (3221, 6804), (3402, 6442)]