21298578

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{507109}}^1$

素因数の和:507121

約数の個数: 16

約数和(自身を含む): 48682560

約数和(自身を除く): 27383982

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 507109, 1014218, 1521327, 3042654, 3549763, 7099526, 10649289, 21298578]

約数ペア:

[(1, 21298578), (2, 10649289), (3, 7099526), (6, 3549763), (7, 3042654), (14, 1521327), (21, 1014218), (42, 507109)]