20851684

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{14051}}^1$

素因数の和:14115

約数の個数: 24

約数和(自身を含む): 42493248

約数和(自身を除く): 21641564

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 14051, 28102, 56204, 98357, 196714, 393428, 744703, 1489406, 2978812, 5212921, 10425842, 20851684]

約数ペア:

[(1, 20851684), (2, 10425842), (4, 5212921), (7, 2978812), (14, 1489406), (28, 744703), (53, 393428), (106, 196714), (212, 98357), (371, 56204), (742, 28102), (1484, 14051)]