221487357

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{13751}}^1$

素因数の和:13833

約数の個数: 32

約数和(自身を含む): 369653760

約数和(自身を除く): 148166403

約数列:

[1, 3, 7, 13, 21, 39, 59, 91, 177, 273, 413, 767, 1239, 2301, 5369, 13751, 16107, 41253, 96257, 178763, 288771, 536289, 811309, 1251341, 2433927, 3754023, 5679163, 10547017, 17037489, 31641051, 73829119, 221487357]

約数ペア:

[(1, 221487357), (3, 73829119), (7, 31641051), (13, 17037489), (21, 10547017), (39, 5679163), (59, 3754023), (91, 2433927), (177, 1251341), (273, 811309), (413, 536289), (767, 288771), (1239, 178763), (2301, 96257), (5369, 41253), (13751, 16107)]