18638210

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{26251}}^1$

素因数の和:26329

約数の個数: 16

約数和(自身を含む): 34022592

約数和(自身を除く): 15384382

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 26251, 52502, 131255, 262510, 1863821, 3727642, 9319105, 18638210]

約数ペア:

[(1, 18638210), (2, 9319105), (5, 3727642), (10, 1863821), (71, 262510), (142, 131255), (355, 52502), (710, 26251)]