21056845

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{419}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 27871200

約数和(自身を除く): 6814355

約数列:

[1, 5, 19, 23, 95, 115, 419, 437, 529, 2095, 2185, 2645, 7961, 9637, 10051, 39805, 48185, 50255, 183103, 221651, 915515, 1108255, 4211369, 21056845]

約数ペア:

[(1, 21056845), (5, 4211369), (19, 1108255), (23, 915515), (95, 221651), (115, 183103), (419, 50255), (437, 48185), (529, 39805), (2095, 10051), (2185, 9637), (2645, 7961)]