21177896

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{39511}}^1$

素因数の和:39584

約数の個数: 16

約数和(自身を含む): 40302240

約数和(自身を除く): 19124344

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 39511, 79022, 158044, 316088, 2647237, 5294474, 10588948, 21177896]

約数ペア:

[(1, 21177896), (2, 10588948), (4, 5294474), (8, 2647237), (67, 316088), (134, 158044), (268, 79022), (536, 39511)]