19262151

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1$

素因数の和:452

約数の個数: 32

約数和(自身を含む): 29905920

約数和(自身を除く): 10643769

約数列:

[1, 3, 9, 27, 43, 47, 129, 141, 353, 387, 423, 1059, 1161, 1269, 2021, 3177, 6063, 9531, 15179, 16591, 18189, 45537, 49773, 54567, 136611, 149319, 409833, 447957, 713413, 2140239, 6420717, 19262151]

約数ペア:

[(1, 19262151), (3, 6420717), (9, 2140239), (27, 713413), (43, 447957), (47, 409833), (129, 149319), (141, 136611), (353, 54567), (387, 49773), (423, 45537), (1059, 18189), (1161, 16591), (1269, 15179), (2021, 9531), (3177, 6063)]