261388263

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{1613}}^1\times {\mathrm{2843}}^1$

素因数の和:4478

約数の個数: 16

約数和(自身を含む): 367217280

約数和(自身を除く): 105829017

約数列:

[1, 3, 19, 57, 1613, 2843, 4839, 8529, 30647, 54017, 91941, 162051, 4585759, 13757277, 87129421, 261388263]

約数ペア:

[(1, 261388263), (3, 87129421), (19, 13757277), (57, 4585759), (1613, 162051), (2843, 91941), (4839, 54017), (8529, 30647)]