203945889

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{81611}}^1$

素因数の和:81645

約数の個数: 24

約数和(自身を含む): 334935648

約数和(自身を除く): 130989759

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 81611, 244833, 571277, 1387387, 1713831, 3998939, 4162161, 9711709, 11996817, 29135127, 67981963, 203945889]

約数ペア:

[(1, 203945889), (3, 67981963), (7, 29135127), (17, 11996817), (21, 9711709), (49, 4162161), (51, 3998939), (119, 1713831), (147, 1387387), (357, 571277), (833, 244833), (2499, 81611)]