20204619

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{719}}^1$

素因数の和:787

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 10899381

約数列:

[1, 3, 17, 19, 29, 51, 57, 87, 323, 493, 551, 719, 969, 1479, 1653, 2157, 9367, 12223, 13661, 20851, 28101, 36669, 40983, 62553, 232237, 354467, 396169, 696711, 1063401, 1188507, 6734873, 20204619]

約数ペア:

[(1, 20204619), (3, 6734873), (17, 1188507), (19, 1063401), (29, 696711), (51, 396169), (57, 354467), (87, 232237), (323, 62553), (493, 40983), (551, 36669), (719, 28101), (969, 20851), (1479, 13661), (1653, 12223), (2157, 9367)]