173721405

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{80989}}^1$

素因数の和:81021

約数の個数: 32

約数和(自身を含む): 326551680

約数和(自身を除く): 152830275

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 195, 429, 715, 2145, 80989, 242967, 404945, 890879, 1052857, 1214835, 2672637, 3158571, 4454395, 5264285, 11581427, 13363185, 15792855, 34744281, 57907135, 173721405]

約数ペア:

[(1, 173721405), (3, 57907135), (5, 34744281), (11, 15792855), (13, 13363185), (15, 11581427), (33, 5264285), (39, 4454395), (55, 3158571), (65, 2672637), (143, 1214835), (165, 1052857), (195, 890879), (429, 404945), (715, 242967), (2145, 80989)]