19981852784

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{54298513}}^1$

素因数の和:54298544

約数の個数: 20

約数和(自身を含む): 40398094416

約数和(自身を除く): 20416241632

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 54298513, 108597026, 217194052, 434388104, 868776208, 1248865799, 2497731598, 4995463196, 9990926392, 19981852784]

約数ペア:

[(1, 19981852784), (2, 9990926392), (4, 4995463196), (8, 2497731598), (16, 1248865799), (23, 868776208), (46, 434388104), (92, 217194052), (184, 108597026), (368, 54298513)]