18993401

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{709}}^1$

素因数の和:848

約数の個数: 16

約数和(自身を含む): 22492800

約数和(自身を除く): 3499399

約数列:

[1, 7, 43, 89, 301, 623, 709, 3827, 4963, 26789, 30487, 63101, 213409, 441707, 2713343, 18993401]

約数ペア:

[(1, 18993401), (7, 2713343), (43, 441707), (89, 213409), (301, 63101), (623, 30487), (709, 26789), (3827, 4963)]