21236706020

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{6514327}}^1$

素因数の和:6514499

約数の個数: 24

約数和(自身を含む): 44870691264

約数和(自身を除く): 23633985244

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 6514327, 13028654, 26057308, 32571635, 65143270, 130286540, 1061835301, 2123670602, 4247341204, 5309176505, 10618353010, 21236706020]

約数ペア:

[(1, 21236706020), (2, 10618353010), (4, 5309176505), (5, 4247341204), (10, 2123670602), (20, 1061835301), (163, 130286540), (326, 65143270), (652, 32571635), (815, 26057308), (1630, 13028654), (3260, 6514327)]