18505753

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2281}}^1$

素因数の和:2368

約数の個数: 16

約数和(自身を含む): 22637440

約数和(自身を除く): 4131687

約数列:

[1, 7, 19, 61, 133, 427, 1159, 2281, 8113, 15967, 43339, 139141, 303373, 973987, 2643679, 18505753]

約数ペア:

[(1, 18505753), (7, 2643679), (19, 973987), (61, 303373), (133, 139141), (427, 43339), (1159, 15967), (2281, 8113)]