21719786

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{12497}}^1$

素因数の和:12589

約数の個数: 16

約数和(自身を含む): 35994240

約数和(自身を除く): 14274454

約数列:

[1, 2, 11, 22, 79, 158, 869, 1738, 12497, 24994, 137467, 274934, 987263, 1974526, 10859893, 21719786]

約数ペア:

[(1, 21719786), (2, 10859893), (11, 1974526), (22, 987263), (79, 274934), (158, 137467), (869, 24994), (1738, 12497)]