20501798

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{12547}}^1$

素因数の和:12611

約数の個数: 16

約数和(自身を含む): 33126720

約数和(自身を除く): 12624922

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 12547, 25094, 238393, 476786, 539521, 1079042, 10250899, 20501798]

約数ペア:

[(1, 20501798), (2, 10250899), (19, 1079042), (38, 539521), (43, 476786), (86, 238393), (817, 25094), (1634, 12547)]