21688304

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{123229}}^1$

素因数の和:123248

約数の個数: 20

約数和(自身を含む): 45841560

約数和(自身を除く): 24153256

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 123229, 246458, 492916, 985832, 1355519, 1971664, 2711038, 5422076, 10844152, 21688304]

約数ペア:

[(1, 21688304), (2, 10844152), (4, 5422076), (8, 2711038), (11, 1971664), (16, 1355519), (22, 985832), (44, 492916), (88, 246458), (176, 123229)]