21425157

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1229}}^1$

素因数の和:1397

約数の個数: 24

約数和(自身を含む): 33579000

約数和(自身を除く): 12153843

約数列:

[1, 3, 9, 13, 39, 117, 149, 447, 1229, 1341, 1937, 3687, 5811, 11061, 15977, 17433, 47931, 143793, 183121, 549363, 1648089, 2380573, 7141719, 21425157]

約数ペア:

[(1, 21425157), (3, 7141719), (9, 2380573), (13, 1648089), (39, 549363), (117, 183121), (149, 143793), (447, 47931), (1229, 17433), (1341, 15977), (1937, 11061), (3687, 5811)]