20851820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{94781}}^1$

素因数の和:94801

約数の個数: 24

約数和(自身を含む): 47770128

約数和(自身を除く): 26918308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 94781, 189562, 379124, 473905, 947810, 1042591, 1895620, 2085182, 4170364, 5212955, 10425910, 20851820]

約数ペア:

[(1, 20851820), (2, 10425910), (4, 5212955), (5, 4170364), (10, 2085182), (11, 1895620), (20, 1042591), (22, 947810), (44, 473905), (55, 379124), (110, 189562), (220, 94781)]