261687363

素因数分解:

$3^1\times 7^1\times {\mathrm{2521}}^1\times {\mathrm{4943}}^1$

素因数の和:7474

約数の個数: 16

約数和(自身を含む): 399000576

約数和(自身を除く): 137313213

約数列:

[1, 3, 7, 21, 2521, 4943, 7563, 14829, 17647, 34601, 52941, 103803, 12461303, 37383909, 87229121, 261687363]

約数ペア:

[(1, 261687363), (3, 87229121), (7, 37383909), (21, 12461303), (2521, 103803), (4943, 52941), (7563, 34601), (14829, 17647)]