81777213

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{56437}}^1$

素因数の和:56473

約数の個数: 24

約数和(自身を含む): 140869248

約数和(自身を除く): 59092035

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 56437, 169311, 395059, 507933, 1185177, 1298051, 3555531, 3894153, 9086357, 11682459, 27259071, 81777213]

約数ペア:

[(1, 81777213), (3, 27259071), (7, 11682459), (9, 9086357), (21, 3894153), (23, 3555531), (63, 1298051), (69, 1185177), (161, 507933), (207, 395059), (483, 169311), (1449, 56437)]