397370997

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{6473}}^1$

素因数の和:6857

約数の個数: 24

約数和(自身を含む): 605966400

約数和(自身を除く): 208595403

約数列:

[1, 3, 9, 19, 57, 171, 359, 1077, 3231, 6473, 6821, 19419, 20463, 58257, 61389, 122987, 368961, 1106883, 2323807, 6971421, 20914263, 44152333, 132456999, 397370997]

約数ペア:

[(1, 397370997), (3, 132456999), (9, 44152333), (19, 20914263), (57, 6971421), (171, 2323807), (359, 1106883), (1077, 368961), (3231, 122987), (6473, 61389), (6821, 58257), (19419, 20463)]