20996710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15787}}^1$

素因数の和:15820

約数の個数: 32

約数和(自身を含む): 45469440

約数和(自身を除く): 24472730

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 15787, 31574, 78935, 110509, 157870, 221018, 299953, 552545, 599906, 1105090, 1499765, 2099671, 2999530, 4199342, 10498355, 20996710]

約数ペア:

[(1, 20996710), (2, 10498355), (5, 4199342), (7, 2999530), (10, 2099671), (14, 1499765), (19, 1105090), (35, 599906), (38, 552545), (70, 299953), (95, 221018), (133, 157870), (190, 110509), (266, 78935), (665, 31574), (1330, 15787)]