21675801

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{16921}}^1$

素因数の和:16992

約数の個数: 16

約数和(自身を含む): 33573248

約数和(自身を除く): 11897447

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 16921, 50763, 118447, 355341, 1032181, 3096543, 7225267, 21675801]

約数ペア:

[(1, 21675801), (3, 7225267), (7, 3096543), (21, 1032181), (61, 355341), (183, 118447), (427, 50763), (1281, 16921)]