2146321881

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{479}}^1$

素因数の和:656

約数の個数: 80

約数和(自身を含む): 3613040640

約数和(自身を除く): 1466718759

約数列:

[1, 3, 9, 11, 27, 33, 47, 81, 99, 107, 141, 297, 321, 423, 479, 517, 891, 963, 1177, 1269, 1437, 1551, 2889, 3531, 3807, 4311, 4653, 5029, 5269, 8667, 10593, 12933, 13959, 15087, 15807, 22513, 31779, 38799, 41877, 45261, 47421, 51253, 55319, 67539, 95337, 135783, 142263, 153759, 165957, 202617, 247643, 407349, 426789, 461277, 497871, 563783, 607851, 742929, 1383831, 1493613, 1691349, 1823553, 2228787, 2408891, 4151493, 4480839, 5074047, 6686361, 7226673, 15222141, 20059083, 21680019, 26497801, 45666423, 65040057, 79493403, 195120171, 238480209, 715440627, 2146321881]

約数ペア:

[(1, 2146321881), (3, 715440627), (9, 238480209), (11, 195120171), (27, 79493403), (33, 65040057), (47, 45666423), (81, 26497801), (99, 21680019), (107, 20059083), (141, 15222141), (297, 7226673), (321, 6686361), (423, 5074047), (479, 4480839), (517, 4151493), (891, 2408891), (963, 2228787), (1177, 1823553), (1269, 1691349), (1437, 1493613), (1551, 1383831), (2889, 742929), (3531, 607851), (3807, 563783), (4311, 497871), (4653, 461277), (5029, 426789), (5269, 407349), (8667, 247643), (10593, 202617), (12933, 165957), (13959, 153759), (15087, 142263), (15807, 135783), (22513, 95337), (31779, 67539), (38799, 55319), (41877, 51253), (45261, 47421)]