21991533

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{751}}^1$

素因数の和:1024

約数の個数: 16

約数和(自身を含む): 30176256

約数和(自身を除く): 8184723

約数列:

[1, 3, 43, 129, 227, 681, 751, 2253, 9761, 29283, 32293, 96879, 170477, 511431, 7330511, 21991533]

約数ペア:

[(1, 21991533), (3, 7330511), (43, 511431), (129, 170477), (227, 96879), (681, 32293), (751, 29283), (2253, 9761)]