20790787577

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{311}}^1\times {\mathrm{1289}}^1$

素因数の和:1877

約数の個数: 32

約数和(自身を含む): 24728371200

約数和(自身を除く): 3937583623

約数列:

[1, 7, 31, 217, 239, 311, 1289, 1673, 2177, 7409, 9023, 9641, 39959, 51863, 67487, 74329, 279713, 308071, 400879, 520303, 2156497, 2304199, 2806153, 9550201, 12427249, 16129393, 66851407, 86990743, 95810081, 670670567, 2970112511, 20790787577]

約数ペア:

[(1, 20790787577), (7, 2970112511), (31, 670670567), (217, 95810081), (239, 86990743), (311, 66851407), (1289, 16129393), (1673, 12427249), (2177, 9550201), (7409, 2806153), (9023, 2304199), (9641, 2156497), (39959, 520303), (51863, 400879), (67487, 308071), (74329, 279713)]