19724890

素因数分解:

$2^1\times 5^1\times {\mathrm{839}}^1\times {\mathrm{2351}}^1$

素因数の和:3197

約数の個数: 16

約数和(自身を含む): 35562240

約数和(自身を除く): 15837350

約数列:

[1, 2, 5, 10, 839, 1678, 2351, 4195, 4702, 8390, 11755, 23510, 1972489, 3944978, 9862445, 19724890]

約数ペア:

[(1, 19724890), (2, 9862445), (5, 3944978), (10, 1972489), (839, 23510), (1678, 11755), (2351, 8390), (4195, 4702)]