261197378

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{112877}}^1$

素因数の和:112981

約数の個数: 16

約数和(自身を含む): 426678840

約数和(自身を除く): 165481462

約数列:

[1, 2, 13, 26, 89, 178, 1157, 2314, 112877, 225754, 1467401, 2934802, 10046053, 20092106, 130598689, 261197378]

約数ペア:

[(1, 261197378), (2, 130598689), (13, 20092106), (26, 10046053), (89, 2934802), (178, 1467401), (1157, 225754), (2314, 112877)]