17680491

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:504

約数の個数: 32

約数和(自身を含む): 27786240

約数和(自身を除く): 10105749

約数列:

[1, 3, 9, 23, 27, 69, 71, 207, 213, 401, 621, 639, 1203, 1633, 1917, 3609, 4899, 9223, 10827, 14697, 27669, 28471, 44091, 83007, 85413, 249021, 256239, 654833, 768717, 1964499, 5893497, 17680491]

約数ペア:

[(1, 17680491), (3, 5893497), (9, 1964499), (23, 768717), (27, 654833), (69, 256239), (71, 249021), (207, 85413), (213, 83007), (401, 44091), (621, 28471), (639, 27669), (1203, 14697), (1633, 10827), (1917, 9223), (3609, 4899)]