21793360

素因数分解:

$2^4\times 5^1\times {\mathrm{272417}}^1$

素因数の和:272430

約数の個数: 20

約数和(自身を含む): 50669748

約数和(自身を除く): 28876388

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 272417, 544834, 1089668, 1362085, 2179336, 2724170, 4358672, 5448340, 10896680, 21793360]

約数ペア:

[(1, 21793360), (2, 10896680), (4, 5448340), (5, 4358672), (8, 2724170), (10, 2179336), (16, 1362085), (20, 1089668), (40, 544834), (80, 272417)]