18725456

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{10357}}^1$

素因数の和:10478

約数の個数: 20

約数和(自身を含む): 36605172

約数和(自身を除く): 17879716

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 10357, 20714, 41428, 82856, 165712, 1170341, 2340682, 4681364, 9362728, 18725456]

約数ペア:

[(1, 18725456), (2, 9362728), (4, 4681364), (8, 2340682), (16, 1170341), (113, 165712), (226, 82856), (452, 41428), (904, 20714), (1808, 10357)]