16986627

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{617}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 30850560

約数和(自身を除く): 13863933

約数列:

[1, 3, 7, 9, 19, 21, 23, 57, 63, 69, 133, 161, 171, 207, 399, 437, 483, 617, 1197, 1311, 1449, 1851, 3059, 3933, 4319, 5553, 9177, 11723, 12957, 14191, 27531, 35169, 38871, 42573, 82061, 99337, 105507, 127719, 246183, 269629, 298011, 738549, 808887, 894033, 1887403, 2426661, 5662209, 16986627]

約数ペア:

[(1, 16986627), (3, 5662209), (7, 2426661), (9, 1887403), (19, 894033), (21, 808887), (23, 738549), (57, 298011), (63, 269629), (69, 246183), (133, 127719), (161, 105507), (171, 99337), (207, 82061), (399, 42573), (437, 38871), (483, 35169), (617, 27531), (1197, 14191), (1311, 12957), (1449, 11723), (1851, 9177), (3059, 5553), (3933, 4319)]