21572816

素因数分解:

$2^4\times {\mathrm{149}}^1\times {\mathrm{9049}}^1$

素因数の和:9206

約数の個数: 20

約数和(自身を含む): 42082500

約数和(自身を除く): 20509684

約数列:

[1, 2, 4, 8, 16, 149, 298, 596, 1192, 2384, 9049, 18098, 36196, 72392, 144784, 1348301, 2696602, 5393204, 10786408, 21572816]

約数ペア:

[(1, 21572816), (2, 10786408), (4, 5393204), (8, 2696602), (16, 1348301), (149, 144784), (298, 72392), (596, 36196), (1192, 18098), (2384, 9049)]