21728748

素因数分解:

$2^2\times 3^1\times {\mathrm{137}}^1\times {\mathrm{13217}}^1$

素因数の和:13361

約数の個数: 24

約数和(自身を含む): 51074352

約数和(自身を除く): 29345604

約数列:

[1, 2, 3, 4, 6, 12, 137, 274, 411, 548, 822, 1644, 13217, 26434, 39651, 52868, 79302, 158604, 1810729, 3621458, 5432187, 7242916, 10864374, 21728748]

約数ペア:

[(1, 21728748), (2, 10864374), (3, 7242916), (4, 5432187), (6, 3621458), (12, 1810729), (137, 158604), (274, 79302), (411, 52868), (548, 39651), (822, 26434), (1644, 13217)]