21739578

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{517609}}^1$

素因数の和:517621

約数の個数: 16

約数和(自身を含む): 49690560

約数和(自身を除く): 27950982

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 517609, 1035218, 1552827, 3105654, 3623263, 7246526, 10869789, 21739578]

約数ペア:

[(1, 21739578), (2, 10869789), (3, 7246526), (6, 3623263), (7, 3105654), (14, 1552827), (21, 1035218), (42, 517609)]