21352568

素因数分解:

$2^3\times {\mathrm{821}}^1\times {\mathrm{3251}}^1$

素因数の和:4078

約数の個数: 16

約数和(自身を含む): 40097160

約数和(自身を除く): 18744592

約数列:

[1, 2, 4, 8, 821, 1642, 3251, 3284, 6502, 6568, 13004, 26008, 2669071, 5338142, 10676284, 21352568]

約数ペア:

[(1, 21352568), (2, 10676284), (4, 5338142), (8, 2669071), (821, 26008), (1642, 13004), (3251, 6568), (3284, 6502)]