20881941

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{1487}}^1$

素因数の和:1672

約数の個数: 16

約数和(自身を含む): 28950528

約数和(自身を除く): 8068587

約数列:

[1, 3, 31, 93, 151, 453, 1487, 4461, 4681, 14043, 46097, 138291, 224537, 673611, 6960647, 20881941]

約数ペア:

[(1, 20881941), (3, 6960647), (31, 673611), (93, 224537), (151, 138291), (453, 46097), (1487, 14043), (4461, 4681)]