21880408

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{248641}}^1$

素因数の和:248658

約数の個数: 16

約数和(自身を含む): 44755560

約数和(自身を除く): 22875152

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 248641, 497282, 994564, 1989128, 2735051, 5470102, 10940204, 21880408]

約数ペア:

[(1, 21880408), (2, 10940204), (4, 5470102), (8, 2735051), (11, 1989128), (22, 994564), (44, 497282), (88, 248641)]