19997608

素因数分解:

$2^3\times {\mathrm{239}}^1\times {\mathrm{10459}}^1$

素因数の和:10704

約数の個数: 16

約数和(自身を含む): 37656000

約数和(自身を除く): 17658392

約数列:

[1, 2, 4, 8, 239, 478, 956, 1912, 10459, 20918, 41836, 83672, 2499701, 4999402, 9998804, 19997608]

約数ペア:

[(1, 19997608), (2, 9998804), (4, 4999402), (8, 2499701), (239, 83672), (478, 41836), (956, 20918), (1912, 10459)]