21379845

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{75017}}^1$

素因数の和:75044

約数の個数: 16

約数和(自身を含む): 36008640

約数和(自身を除く): 14628795

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 75017, 225051, 375085, 1125255, 1425323, 4275969, 7126615, 21379845]

約数ペア:

[(1, 21379845), (3, 7126615), (5, 4275969), (15, 1425323), (19, 1125255), (57, 375085), (95, 225051), (285, 75017)]