17690519

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1427}}^1$

素因数の和:1475

約数の個数: 24

約数和(自身を含む): 23442048

約数和(自身を除く): 5751529

約数列:

[1, 7, 11, 23, 49, 77, 161, 253, 539, 1127, 1427, 1771, 9989, 12397, 15697, 32821, 69923, 109879, 229747, 361031, 769153, 1608229, 2527217, 17690519]

約数ペア:

[(1, 17690519), (7, 2527217), (11, 1608229), (23, 769153), (49, 361031), (77, 229747), (161, 109879), (253, 69923), (539, 32821), (1127, 15697), (1427, 12397), (1771, 9989)]