21306272

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{51217}}^1$

素因数の和:51240

約数の個数: 24

約数和(自身を含む): 45174276

約数和(自身を除く): 23868004

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 51217, 102434, 204868, 409736, 665821, 819472, 1331642, 1638944, 2663284, 5326568, 10653136, 21306272]

約数ペア:

[(1, 21306272), (2, 10653136), (4, 5326568), (8, 2663284), (13, 1638944), (16, 1331642), (26, 819472), (32, 665821), (52, 409736), (104, 204868), (208, 102434), (416, 51217)]