21255985

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{3119}}^1$

素因数の和:3200

約数の個数: 16

約数和(自身を含む): 26956800

約数和(自身を除く): 5700815

約数列:

[1, 5, 29, 47, 145, 235, 1363, 3119, 6815, 15595, 90451, 146593, 452255, 732965, 4251197, 21255985]

約数ペア:

[(1, 21255985), (5, 4251197), (29, 732965), (47, 452255), (145, 146593), (235, 90451), (1363, 15595), (3119, 6815)]