20924943

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{853}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 32711616

約数和(自身を除く): 11786673

約数列:

[1, 3, 13, 17, 37, 39, 51, 111, 221, 481, 629, 663, 853, 1443, 1887, 2559, 8177, 11089, 14501, 24531, 31561, 33267, 43503, 94683, 188513, 410293, 536537, 565539, 1230879, 1609611, 6974981, 20924943]

約数ペア:

[(1, 20924943), (3, 6974981), (13, 1609611), (17, 1230879), (37, 565539), (39, 536537), (51, 410293), (111, 188513), (221, 94683), (481, 43503), (629, 33267), (663, 31561), (853, 24531), (1443, 14501), (1887, 11089), (2559, 8177)]