20479263

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{20749}}^1$

素因数の和:20806

約数の個数: 16

約数和(自身を含む): 31872000

約数和(自身を除く): 11392737

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 20749, 62247, 145243, 435729, 975203, 2925609, 6826421, 20479263]

約数ペア:

[(1, 20479263), (3, 6826421), (7, 2925609), (21, 975203), (47, 435729), (141, 145243), (329, 62247), (987, 20749)]