21277785

素因数分解:

$3^1\times 5^1\times {\mathrm{373}}^1\times {\mathrm{3803}}^1$

素因数の和:4184

約数の個数: 16

約数和(自身を含む): 34144704

約数和(自身を除く): 12866919

約数列:

[1, 3, 5, 15, 373, 1119, 1865, 3803, 5595, 11409, 19015, 57045, 1418519, 4255557, 7092595, 21277785]

約数ペア:

[(1, 21277785), (3, 7092595), (5, 4255557), (15, 1418519), (373, 57045), (1119, 19015), (1865, 11409), (3803, 5595)]