21426951

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{78487}}^1$

素因数の和:78510

約数の個数: 16

約数和(自身を含む): 35162624

約数和(自身を除く): 13735673

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 78487, 235461, 549409, 1020331, 1648227, 3060993, 7142317, 21426951]

約数ペア:

[(1, 21426951), (3, 7142317), (7, 3060993), (13, 1648227), (21, 1020331), (39, 549409), (91, 235461), (273, 78487)]