21403804

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{6869}}^1$

素因数の和:6933

約数の個数: 24

約数和(自身を含む): 40395600

約数和(自身を除く): 18991796

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 164, 779, 1558, 3116, 6869, 13738, 27476, 130511, 261022, 281629, 522044, 563258, 1126516, 5350951, 10701902, 21403804]

約数ペア:

[(1, 21403804), (2, 10701902), (4, 5350951), (19, 1126516), (38, 563258), (41, 522044), (76, 281629), (82, 261022), (164, 130511), (779, 27476), (1558, 13738), (3116, 6869)]