201638381

素因数分解:

$7^4\times {\mathrm{137}}^1\times {\mathrm{613}}^1$

素因数の和:778

約数の個数: 20

約数和(自身を含む): 237334332

約数和(自身を除く): 35695951

約数列:

[1, 7, 49, 137, 343, 613, 959, 2401, 4291, 6713, 30037, 46991, 83981, 210259, 328937, 587867, 1471813, 4115069, 28805483, 201638381]

約数ペア:

[(1, 201638381), (7, 28805483), (49, 4115069), (137, 1471813), (343, 587867), (613, 328937), (959, 210259), (2401, 83981), (4291, 46991), (6713, 30037)]