21122451

素因数分解:

$3^4\times 7^1\times {\mathrm{37253}}^1$

素因数の和:37272

約数の個数: 20

約数和(自身を含む): 36061872

約数和(自身を除く): 14939421

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 37253, 111759, 260771, 335277, 782313, 1005831, 2346939, 3017493, 7040817, 21122451]

約数ペア:

[(1, 21122451), (3, 7040817), (7, 3017493), (9, 2346939), (21, 1005831), (27, 782313), (63, 335277), (81, 260771), (189, 111759), (567, 37253)]