21486060

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{4421}}^1$

素因数の和:4445

約数の個数: 72

約数和(自身を含む): 67603536

約数和(自身を除く): 46117476

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4421, 4860, 8842, 13263, 17684, 22105, 26526, 39789, 44210, 53052, 66315, 79578, 88420, 119367, 132630, 159156, 198945, 238734, 265260, 358101, 397890, 477468, 596835, 716202, 795780, 1074303, 1193670, 1432404, 1790505, 2148606, 2387340, 3581010, 4297212, 5371515, 7162020, 10743030, 21486060]

約数ペア:

[(1, 21486060), (2, 10743030), (3, 7162020), (4, 5371515), (5, 4297212), (6, 3581010), (9, 2387340), (10, 2148606), (12, 1790505), (15, 1432404), (18, 1193670), (20, 1074303), (27, 795780), (30, 716202), (36, 596835), (45, 477468), (54, 397890), (60, 358101), (81, 265260), (90, 238734), (108, 198945), (135, 159156), (162, 132630), (180, 119367), (243, 88420), (270, 79578), (324, 66315), (405, 53052), (486, 44210), (540, 39789), (810, 26526), (972, 22105), (1215, 17684), (1620, 13263), (2430, 8842), (4421, 4860)]