21071656

素因数分解:

$2^3\times {\mathrm{1129}}^1\times {\mathrm{2333}}^1$

素因数の和:3468

約数の個数: 16

約数和(自身を含む): 39561300

約数和(自身を除く): 18489644

約数列:

[1, 2, 4, 8, 1129, 2258, 2333, 4516, 4666, 9032, 9332, 18664, 2633957, 5267914, 10535828, 21071656]

約数ペア:

[(1, 21071656), (2, 10535828), (4, 5267914), (8, 2633957), (1129, 18664), (2258, 9332), (2333, 9032), (4516, 4666)]