21109699

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4153}}^1$

素因数の和:4206

約数の個数: 16

約数和(自身を含む): 25123392

約数和(自身を除く): 4013693

約数列:

[1, 13, 17, 23, 221, 299, 391, 4153, 5083, 53989, 70601, 95519, 917813, 1241747, 1623823, 21109699]

約数ペア:

[(1, 21109699), (13, 1623823), (17, 1241747), (23, 917813), (221, 95519), (299, 70601), (391, 53989), (4153, 5083)]