21000724782

素因数分解:

$2^1\times 3^1\times {\mathrm{400151}}^1\times {\mathrm{8747}}^1$

素因数の和:408903

約数の個数: 16

約数和(自身を含む): 42006356352

約数和(自身を除く): 21005631570

約数列:

[1, 2, 3, 6, 8747, 17494, 26241, 52482, 400151, 800302, 1200453, 2400906, 3500120797, 7000241594, 10500362391, 21000724782]

約数ペア:

[(1, 21000724782), (2, 10500362391), (3, 7000241594), (6, 3500120797), (8747, 2400906), (17494, 1200453), (26241, 800302), (52482, 400151)]