20481993

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{3917}}^1$

素因数の和:4013

約数の個数: 24

約数和(自身を含む): 34227648

約数和(自身を除く): 13745655

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 3917, 5229, 11751, 27419, 35253, 82257, 246771, 325111, 975333, 2275777, 2925999, 6827331, 20481993]

約数ペア:

[(1, 20481993), (3, 6827331), (7, 2925999), (9, 2275777), (21, 975333), (63, 325111), (83, 246771), (249, 82257), (581, 35253), (747, 27419), (1743, 11751), (3917, 5229)]