20974090

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{123377}}^1$

素因数の和:123401

約数の個数: 16

約数和(自身を含む): 39974472

約数和(自身を除く): 19000382

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 123377, 246754, 616885, 1233770, 2097409, 4194818, 10487045, 20974090]

約数ペア:

[(1, 20974090), (2, 10487045), (5, 4194818), (10, 2097409), (17, 1233770), (34, 616885), (85, 246754), (170, 123377)]