21820702

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{19801}}^1$

素因数の和:19851

約数の個数: 16

約数和(自身を含む): 35643600

約数和(自身を除く): 13822898

約数列:

[1, 2, 19, 29, 38, 58, 551, 1102, 19801, 39602, 376219, 574229, 752438, 1148458, 10910351, 21820702]

約数ペア:

[(1, 21820702), (2, 10910351), (19, 1148458), (29, 752438), (38, 574229), (58, 376219), (551, 39602), (1102, 19801)]