1387827

素因数分解:

$3^3\times 7^2\times {\mathrm{1049}}^1$

素因数の和:1072

約数の個数: 24

約数和(自身を含む): 2394000

約数和(自身を除く): 1006173

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1049, 1323, 3147, 7343, 9441, 22029, 28323, 51401, 66087, 154203, 198261, 462609, 1387827]

約数ペア:

[(1, 1387827), (3, 462609), (7, 198261), (9, 154203), (21, 66087), (27, 51401), (49, 28323), (63, 22029), (147, 9441), (189, 7343), (441, 3147), (1049, 1323)]