21557728

素因数分解:

$2^5\times {\mathrm{163}}^1\times {\mathrm{4133}}^1$

素因数の和:4306

約数の個数: 24

約数和(自身を含む): 42712488

約数和(自身を除く): 21154760

約数列:

[1, 2, 4, 8, 16, 32, 163, 326, 652, 1304, 2608, 4133, 5216, 8266, 16532, 33064, 66128, 132256, 673679, 1347358, 2694716, 5389432, 10778864, 21557728]

約数ペア:

[(1, 21557728), (2, 10778864), (4, 5389432), (8, 2694716), (16, 1347358), (32, 673679), (163, 132256), (326, 66128), (652, 33064), (1304, 16532), (2608, 8266), (4133, 5216)]