20187517

素因数分解:

$7^1\times {\mathrm{17}}^3\times {\mathrm{587}}^1$

素因数の和:645

約数の個数: 16

約数和(自身を含む): 24554880

約数和(自身を除く): 4367363

約数列:

[1, 7, 17, 119, 289, 587, 2023, 4109, 4913, 9979, 34391, 69853, 169643, 1187501, 2883931, 20187517]

約数ペア:

[(1, 20187517), (7, 2883931), (17, 1187501), (119, 169643), (289, 69853), (587, 34391), (2023, 9979), (4109, 4913)]