21105195

素因数分解:

$3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{3617}}^1$

素因数の和:4014

約数の個数: 16

約数和(自身を含む): 33864480

約数和(自身を除く): 12759285

約数列:

[1, 3, 5, 15, 389, 1167, 1945, 3617, 5835, 10851, 18085, 54255, 1407013, 4221039, 7035065, 21105195]

約数ペア:

[(1, 21105195), (3, 7035065), (5, 4221039), (15, 1407013), (389, 54255), (1167, 18085), (1945, 10851), (3617, 5835)]