21307372

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{751}}^1$

素因数の和:969

約数の個数: 24

約数和(自身を含む): 38469312

約数和(自身を除く): 17161940

約数列:

[1, 2, 4, 41, 82, 164, 173, 346, 692, 751, 1502, 3004, 7093, 14186, 28372, 30791, 61582, 123164, 129923, 259846, 519692, 5326843, 10653686, 21307372]

約数ペア:

[(1, 21307372), (2, 10653686), (4, 5326843), (41, 519692), (82, 259846), (164, 129923), (173, 123164), (346, 61582), (692, 30791), (751, 28372), (1502, 14186), (3004, 7093)]