21210416

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{57637}}^1$

素因数の和:57668

約数の個数: 20

約数和(自身を含む): 42882672

約数和(自身を除く): 21672256

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 57637, 115274, 230548, 461096, 922192, 1325651, 2651302, 5302604, 10605208, 21210416]

約数ペア:

[(1, 21210416), (2, 10605208), (4, 5302604), (8, 2651302), (16, 1325651), (23, 922192), (46, 461096), (92, 230548), (184, 115274), (368, 57637)]