18790057

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 23950080

約数和(自身を除く): 5160023

約数列:

[1, 11, 13, 23, 29, 143, 197, 253, 299, 319, 377, 667, 2167, 2561, 3289, 4147, 4531, 5713, 7337, 8671, 28171, 49841, 58903, 62843, 74269, 95381, 131399, 647933, 816959, 1445389, 1708187, 18790057]

約数ペア:

[(1, 18790057), (11, 1708187), (13, 1445389), (23, 816959), (29, 647933), (143, 131399), (197, 95381), (253, 74269), (299, 62843), (319, 58903), (377, 49841), (667, 28171), (2167, 8671), (2561, 7337), (3289, 5713), (4147, 4531)]