21664768

素因数分解:

$2^{10}\times {\mathrm{21157}}^1$

素因数の和:21177

約数の個数: 22

約数和(自身を含む): 43310426

約数和(自身を除く): 21645658

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 21157, 42314, 84628, 169256, 338512, 677024, 1354048, 2708096, 5416192, 10832384, 21664768]

約数ペア:

[(1, 21664768), (2, 10832384), (4, 5416192), (8, 2708096), (16, 1354048), (32, 677024), (64, 338512), (128, 169256), (256, 84628), (512, 42314), (1024, 21157)]