13237281

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{389}}^1$

素因数の和:613

約数の個数: 24

約数和(自身を含む): 20280000

約数和(自身を除く): 7042719

約数列:

[1, 3, 9, 19, 57, 171, 199, 389, 597, 1167, 1791, 3501, 3781, 7391, 11343, 22173, 34029, 66519, 77411, 232233, 696699, 1470809, 4412427, 13237281]

約数ペア:

[(1, 13237281), (3, 4412427), (9, 1470809), (19, 696699), (57, 232233), (171, 77411), (199, 66519), (389, 34029), (597, 22173), (1167, 11343), (1791, 7391), (3501, 3781)]