20649657693

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{215687}}^1$

素因数の和:215841

約数の個数: 32

約数和(自身を含む): 32467083264

約数和(自身を除く): 11817425571

約数列:

[1, 3, 7, 21, 47, 97, 141, 291, 329, 679, 987, 2037, 4559, 13677, 31913, 95739, 215687, 647061, 1509809, 4529427, 10137289, 20921639, 30411867, 62764917, 70961023, 146451473, 212883069, 439354419, 983317033, 2949951099, 6883219231, 20649657693]

約数ペア:

[(1, 20649657693), (3, 6883219231), (7, 2949951099), (21, 983317033), (47, 439354419), (97, 212883069), (141, 146451473), (291, 70961023), (329, 62764917), (679, 30411867), (987, 20921639), (2037, 10137289), (4559, 4529427), (13677, 1509809), (31913, 647061), (95739, 215687)]