219645491

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^3\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:264

約数の個数: 32

約数和(自身を含む): 266011200

約数和(自身を除く): 46365709

約数列:

[1, 13, 17, 19, 181, 221, 247, 289, 323, 2353, 3077, 3439, 3757, 4199, 4913, 5491, 40001, 44707, 52309, 58463, 63869, 71383, 93347, 680017, 760019, 889253, 993871, 1213511, 11560289, 12920323, 16895807, 219645491]

約数ペア:

[(1, 219645491), (13, 16895807), (17, 12920323), (19, 11560289), (181, 1213511), (221, 993871), (247, 889253), (289, 760019), (323, 680017), (2353, 93347), (3077, 71383), (3439, 63869), (3757, 58463), (4199, 52309), (4913, 44707), (5491, 40001)]