21030190

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{123707}}^1$

素因数の和:123731

約数の個数: 16

約数和(自身を含む): 40081392

約数和(自身を除く): 19051202

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 123707, 247414, 618535, 1237070, 2103019, 4206038, 10515095, 21030190]

約数ペア:

[(1, 21030190), (2, 10515095), (5, 4206038), (10, 2103019), (17, 1237070), (34, 618535), (85, 247414), (170, 123707)]