21355648

素因数分解:

$2^7\times {\mathrm{166841}}^1$

素因数の和:166855

約数の個数: 16

約数和(自身を含む): 42544710

約数和(自身を除く): 21189062

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 166841, 333682, 667364, 1334728, 2669456, 5338912, 10677824, 21355648]

約数ペア:

[(1, 21355648), (2, 10677824), (4, 5338912), (8, 2669456), (16, 1334728), (32, 667364), (64, 333682), (128, 166841)]