2761567221

素因数分解:

$3^1\times 7^1\times {\mathrm{6143}}^1\times {\mathrm{21407}}^1$

素因数の和:27560

約数の個数: 16

約数和(自身を含む): 4208984064

約数和(自身を除く): 1447416843

約数列:

[1, 3, 7, 21, 6143, 18429, 21407, 43001, 64221, 129003, 149849, 449547, 131503201, 394509603, 920522407, 2761567221]

約数ペア:

[(1, 2761567221), (3, 920522407), (7, 394509603), (21, 131503201), (6143, 449547), (18429, 149849), (21407, 129003), (43001, 64221)]