21069844

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{1223}}^1$

素因数の和:1359

約数の個数: 24

約数和(自身を含む): 38041920

約数和(自身を除く): 16972076

約数列:

[1, 2, 4, 59, 73, 118, 146, 236, 292, 1223, 2446, 4307, 4892, 8614, 17228, 72157, 89279, 144314, 178558, 288628, 357116, 5267461, 10534922, 21069844]

約数ペア:

[(1, 21069844), (2, 10534922), (4, 5267461), (59, 357116), (73, 288628), (118, 178558), (146, 144314), (236, 89279), (292, 72157), (1223, 17228), (2446, 8614), (4307, 4892)]