20121869072

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9047603}}^1$

素因数の和:9047750

約数の個数: 20

約数和(自身を含む): 39266601360

約数和(自身を除く): 19144732288

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9047603, 18095206, 36190412, 72380824, 144761648, 1257616817, 2515233634, 5030467268, 10060934536, 20121869072]

約数ペア:

[(1, 20121869072), (2, 10060934536), (4, 5030467268), (8, 2515233634), (16, 1257616817), (139, 144761648), (278, 72380824), (556, 36190412), (1112, 18095206), (2224, 9047603)]