21942531

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{223}}^1$

素因数の和:300

約数の個数: 36

約数和(自身を含む): 35508928

約数和(自身を除く): 13566397

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 223, 261, 377, 669, 841, 1131, 2007, 2523, 2899, 3393, 6467, 7569, 8697, 10933, 19401, 26091, 32799, 58203, 84071, 98397, 187543, 252213, 562629, 756639, 1687887, 2438059, 7314177, 21942531]

約数ペア:

[(1, 21942531), (3, 7314177), (9, 2438059), (13, 1687887), (29, 756639), (39, 562629), (87, 252213), (117, 187543), (223, 98397), (261, 84071), (377, 58203), (669, 32799), (841, 26091), (1131, 19401), (2007, 10933), (2523, 8697), (2899, 7569), (3393, 6467)]