2780661

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:141

約数の個数: 32

約数和(自身を含む): 4290048

約数和(自身を除く): 1509387

約数列:

[1, 3, 13, 37, 39, 41, 47, 111, 123, 141, 481, 533, 611, 1443, 1517, 1599, 1739, 1833, 1927, 4551, 5217, 5781, 19721, 22607, 25051, 59163, 67821, 71299, 75153, 213897, 926887, 2780661]

約数ペア:

[(1, 2780661), (3, 926887), (13, 213897), (37, 75153), (39, 71299), (41, 67821), (47, 59163), (111, 25051), (123, 22607), (141, 19721), (481, 5781), (533, 5217), (611, 4551), (1443, 1927), (1517, 1833), (1599, 1739)]