20961208

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{84521}}^1$

素因数の和:84558

約数の個数: 16

約数和(自身を含む): 40570560

約数和(自身を除く): 19609352

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 84521, 169042, 338084, 676168, 2620151, 5240302, 10480604, 20961208]

約数ペア:

[(1, 20961208), (2, 10480604), (4, 5240302), (8, 2620151), (31, 676168), (62, 338084), (124, 169042), (248, 84521)]