208768131

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{389}}^1$

素因数の和:561

約数の個数: 64

約数和(自身を含む): 366912000

約数和(自身を除く): 158143869

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 99, 117, 139, 143, 297, 351, 389, 417, 429, 1167, 1251, 1287, 1529, 1807, 3501, 3753, 3861, 4279, 4587, 5057, 5421, 10503, 12837, 13761, 15171, 16263, 19877, 38511, 41283, 45513, 48789, 54071, 55627, 59631, 115533, 136539, 162213, 166881, 178893, 486639, 500643, 536679, 594781, 702923, 1459917, 1501929, 1784343, 2108769, 5353029, 6326307, 7732153, 16059087, 18978921, 23196459, 69589377, 208768131]

約数ペア:

[(1, 208768131), (3, 69589377), (9, 23196459), (11, 18978921), (13, 16059087), (27, 7732153), (33, 6326307), (39, 5353029), (99, 2108769), (117, 1784343), (139, 1501929), (143, 1459917), (297, 702923), (351, 594781), (389, 536679), (417, 500643), (429, 486639), (1167, 178893), (1251, 166881), (1287, 162213), (1529, 136539), (1807, 115533), (3501, 59631), (3753, 55627), (3861, 54071), (4279, 48789), (4587, 45513), (5057, 41283), (5421, 38511), (10503, 19877), (12837, 16263), (13761, 15171)]