21927501

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{397}}^1$

素因数の和:458

約数の個数: 36

約数和(自身を含む): 35483292

約数和(自身を除く): 13555791

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 361, 397, 969, 1083, 1191, 2907, 3249, 3573, 6137, 6749, 7543, 18411, 20247, 22629, 55233, 60741, 67887, 128231, 143317, 384693, 429951, 1154079, 1289853, 2436389, 7309167, 21927501]

約数ペア:

[(1, 21927501), (3, 7309167), (9, 2436389), (17, 1289853), (19, 1154079), (51, 429951), (57, 384693), (153, 143317), (171, 128231), (323, 67887), (361, 60741), (397, 55233), (969, 22629), (1083, 20247), (1191, 18411), (2907, 7543), (3249, 6749), (3573, 6137)]