256822857

素因数分解:

$3^2\times {\mathrm{109}}^1\times {\mathrm{389}}^1\times {\mathrm{673}}^1$

素因数の和:1177

約数の個数: 24

約数和(自身を含む): 375889800

約数和(自身を除く): 119066943

約数列:

[1, 3, 9, 109, 327, 389, 673, 981, 1167, 2019, 3501, 6057, 42401, 73357, 127203, 220071, 261797, 381609, 660213, 785391, 2356173, 28535873, 85607619, 256822857]

約数ペア:

[(1, 256822857), (3, 85607619), (9, 28535873), (109, 2356173), (327, 785391), (389, 660213), (673, 381609), (981, 261797), (1167, 220071), (2019, 127203), (3501, 73357), (6057, 42401)]