17212769

素因数分解:

$7^4\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:202

約数の個数: 20

約数和(自身を含む): 20570544

約数和(自身を除く): 3357775

約数列:

[1, 7, 49, 67, 107, 343, 469, 749, 2401, 3283, 5243, 7169, 22981, 36701, 50183, 160867, 256907, 351281, 2458967, 17212769]

約数ペア:

[(1, 17212769), (7, 2458967), (49, 351281), (67, 256907), (107, 160867), (343, 50183), (469, 36701), (749, 22981), (2401, 7169), (3283, 5243)]