21659427

素因数分解:

$3^3\times {\mathrm{173}}^1\times {\mathrm{4637}}^1$

素因数の和:4819

約数の個数: 16

約数和(自身を含む): 32280480

約数和(自身を除く): 10621053

約数列:

[1, 3, 9, 27, 173, 519, 1557, 4637, 4671, 13911, 41733, 125199, 802201, 2406603, 7219809, 21659427]

約数ペア:

[(1, 21659427), (3, 7219809), (9, 2406603), (27, 802201), (173, 125199), (519, 41733), (1557, 13911), (4637, 4671)]