19698081

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 29503488

約数和(自身を除く): 9805407

約数列:

[1, 3, 13, 39, 41, 97, 123, 127, 291, 381, 533, 1261, 1599, 1651, 3783, 3977, 4953, 5207, 11931, 12319, 15621, 36957, 51701, 67691, 155103, 160147, 203073, 480441, 505079, 1515237, 6566027, 19698081]

約数ペア:

[(1, 19698081), (3, 6566027), (13, 1515237), (39, 505079), (41, 480441), (97, 203073), (123, 160147), (127, 155103), (291, 67691), (381, 51701), (533, 36957), (1261, 15621), (1599, 12319), (1651, 11931), (3783, 5207), (3977, 4953)]