21225272

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{71707}}^1$

素因数の和:71750

約数の個数: 16

約数和(自身を含む): 40873560

約数和(自身を除く): 19648288

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 71707, 143414, 286828, 573656, 2653159, 5306318, 10612636, 21225272]

約数ペア:

[(1, 21225272), (2, 10612636), (4, 5306318), (8, 2653159), (37, 573656), (74, 286828), (148, 143414), (296, 71707)]