21589893

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 35852544

約数和(自身を除く): 14262651

約数列:

[1, 3, 9, 13, 23, 39, 69, 71, 113, 117, 207, 213, 299, 339, 639, 897, 923, 1017, 1469, 1633, 2599, 2691, 2769, 4407, 4899, 7797, 8023, 8307, 13221, 14697, 21229, 23391, 24069, 33787, 63687, 72207, 101361, 104299, 184529, 191061, 304083, 312897, 553587, 938691, 1660761, 2398877, 7196631, 21589893]

約数ペア:

[(1, 21589893), (3, 7196631), (9, 2398877), (13, 1660761), (23, 938691), (39, 553587), (69, 312897), (71, 304083), (113, 191061), (117, 184529), (207, 104299), (213, 101361), (299, 72207), (339, 63687), (639, 33787), (897, 24069), (923, 23391), (1017, 21229), (1469, 14697), (1633, 13221), (2599, 8307), (2691, 8023), (2769, 7797), (4407, 4899)]