21670792381

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{238673}}^1$

素因数の和:238813

約数の個数: 24

約数和(自身を含む): 26936747640

約数和(自身を除く): 5265955259

約数列:

[1, 7, 17, 49, 109, 119, 763, 833, 1853, 5341, 12971, 90797, 238673, 1670711, 4057441, 11694977, 26015357, 28402087, 182107499, 198814609, 442261069, 1274752493, 3095827483, 21670792381]

約数ペア:

[(1, 21670792381), (7, 3095827483), (17, 1274752493), (49, 442261069), (109, 198814609), (119, 182107499), (763, 28402087), (833, 26015357), (1853, 11694977), (5341, 4057441), (12971, 1670711), (90797, 238673)]