21830645

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{311}}^1$

素因数の和:556

約数の個数: 16

約数和(自身を含む): 26732160

約数和(自身を除く): 4901515

約数列:

[1, 5, 101, 139, 311, 505, 695, 1555, 14039, 31411, 43229, 70195, 157055, 216145, 4366129, 21830645]

約数ペア:

[(1, 21830645), (5, 4366129), (101, 216145), (139, 157055), (311, 70195), (505, 43229), (695, 31411), (1555, 14039)]