20986330

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{123449}}^1$

素因数の和:123473

約数の個数: 16

約数和(自身を含む): 39997800

約数和(自身を除く): 19011470

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 123449, 246898, 617245, 1234490, 2098633, 4197266, 10493165, 20986330]

約数ペア:

[(1, 20986330), (2, 10493165), (5, 4197266), (10, 2098633), (17, 1234490), (34, 617245), (85, 246898), (170, 123449)]