20609395

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1\times {\mathrm{541}}^1$

素因数の和:966

約数の個数: 16

約数和(自身を含む): 26146080

約数和(自身を除く): 5536685

約数列:

[1, 5, 19, 95, 401, 541, 2005, 2705, 7619, 10279, 38095, 51395, 216941, 1084705, 4121879, 20609395]

約数ペア:

[(1, 20609395), (5, 4121879), (19, 1084705), (95, 216941), (401, 51395), (541, 38095), (2005, 10279), (2705, 7619)]