20117745

素因数分解:

$3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{5659}}^1$

素因数の和:5749

約数の個数: 24

約数和(自身を含む): 35318400

約数和(自身を除く): 15200655

約数列:

[1, 3, 5, 9, 15, 45, 79, 237, 395, 711, 1185, 3555, 5659, 16977, 28295, 50931, 84885, 254655, 447061, 1341183, 2235305, 4023549, 6705915, 20117745]

約数ペア:

[(1, 20117745), (3, 6705915), (5, 4023549), (9, 2235305), (15, 1341183), (45, 447061), (79, 254655), (237, 84885), (395, 50931), (711, 28295), (1185, 16977), (3555, 5659)]