19840251

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{3803}}^1$

素因数の和:3890

約数の個数: 16

約数和(自身を含む): 27753984

約数和(自身を除く): 7913733

約数列:

[1, 3, 37, 47, 111, 141, 1739, 3803, 5217, 11409, 140711, 178741, 422133, 536223, 6613417, 19840251]

約数ペア:

[(1, 19840251), (3, 6613417), (37, 536223), (47, 422133), (111, 178741), (141, 140711), (1739, 11409), (3803, 5217)]