21403798

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{28387}}^1$

素因数の和:28431

約数の個数: 16

約数和(自身を含む): 35768880

約数和(自身を除く): 14365082

約数列:

[1, 2, 13, 26, 29, 58, 377, 754, 28387, 56774, 369031, 738062, 823223, 1646446, 10701899, 21403798]

約数ペア:

[(1, 21403798), (2, 10701899), (13, 1646446), (26, 823223), (29, 738062), (58, 369031), (377, 56774), (754, 28387)]