19827717

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1231}}^1$

素因数の和:1313

約数の個数: 32

約数和(自身を含む): 33116160

約数和(自身を除く): 13288443

約数列:

[1, 3, 7, 13, 21, 39, 59, 91, 177, 273, 413, 767, 1231, 1239, 2301, 3693, 5369, 8617, 16003, 16107, 25851, 48009, 72629, 112021, 217887, 336063, 508403, 944177, 1525209, 2832531, 6609239, 19827717]

約数ペア:

[(1, 19827717), (3, 6609239), (7, 2832531), (13, 1525209), (21, 944177), (39, 508403), (59, 336063), (91, 217887), (177, 112021), (273, 72629), (413, 48009), (767, 25851), (1231, 16107), (1239, 16003), (2301, 8617), (3693, 5369)]