2021096917

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{491}}^1\times {\mathrm{691}}^1$

素因数の和:1249

約数の個数: 32

約数和(自身を含む): 2484025344

約数和(自身を除く): 462928427

約数列:

[1, 7, 23, 37, 161, 259, 491, 691, 851, 3437, 4837, 5957, 11293, 15893, 18167, 25567, 79051, 111251, 127169, 178969, 339281, 417841, 588041, 2374967, 2924887, 4116287, 7803463, 12553397, 54624241, 87873779, 288728131, 2021096917]

約数ペア:

[(1, 2021096917), (7, 288728131), (23, 87873779), (37, 54624241), (161, 12553397), (259, 7803463), (491, 4116287), (691, 2924887), (851, 2374967), (3437, 588041), (4837, 417841), (5957, 339281), (11293, 178969), (15893, 127169), (18167, 111251), (25567, 79051)]