21321804

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{41}}^2\times {\mathrm{151}}^1$

素因数の和:247

約数の個数: 72

約数和(自身を含む): 58664704

約数和(自身を除く): 37342900

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 41, 42, 82, 84, 123, 151, 164, 246, 287, 302, 453, 492, 574, 604, 861, 906, 1057, 1148, 1681, 1722, 1812, 2114, 3171, 3362, 3444, 4228, 5043, 6191, 6342, 6724, 10086, 11767, 12382, 12684, 18573, 20172, 23534, 24764, 35301, 37146, 43337, 47068, 70602, 74292, 86674, 130011, 141204, 173348, 253831, 260022, 507662, 520044, 761493, 1015324, 1522986, 1776817, 3045972, 3553634, 5330451, 7107268, 10660902, 21321804]

約数ペア:

[(1, 21321804), (2, 10660902), (3, 7107268), (4, 5330451), (6, 3553634), (7, 3045972), (12, 1776817), (14, 1522986), (21, 1015324), (28, 761493), (41, 520044), (42, 507662), (82, 260022), (84, 253831), (123, 173348), (151, 141204), (164, 130011), (246, 86674), (287, 74292), (302, 70602), (453, 47068), (492, 43337), (574, 37146), (604, 35301), (861, 24764), (906, 23534), (1057, 20172), (1148, 18573), (1681, 12684), (1722, 12382), (1812, 11767), (2114, 10086), (3171, 6724), (3362, 6342), (3444, 6191), (4228, 5043)]