20512321089

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{940889}}^1$

素因数の和:940961

約数の個数: 24

約数和(自身を含む): 30304185120

約数和(自身を除く): 9791864031

約数列:

[1, 3, 13, 39, 43, 129, 169, 507, 559, 1677, 7267, 21801, 940889, 2822667, 12231557, 36694671, 40458227, 121374681, 159010241, 477030723, 525956951, 1577870853, 6837440363, 20512321089]

約数ペア:

[(1, 20512321089), (3, 6837440363), (13, 1577870853), (39, 525956951), (43, 477030723), (129, 159010241), (169, 121374681), (507, 40458227), (559, 36694671), (1677, 12231557), (7267, 2822667), (21801, 940889)]