21170499

素因数分解:

$3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{1823}}^1$

素因数の和:1919

約数の個数: 24

約数和(自身を含む): 33269760

約数和(自身を除く): 12099261

約数列:

[1, 3, 7, 21, 49, 79, 147, 237, 553, 1659, 1823, 3871, 5469, 11613, 12761, 38283, 89327, 144017, 267981, 432051, 1008119, 3024357, 7056833, 21170499]

約数ペア:

[(1, 21170499), (3, 7056833), (7, 3024357), (21, 1008119), (49, 432051), (79, 267981), (147, 144017), (237, 89327), (553, 38283), (1659, 12761), (1823, 11613), (3871, 5469)]