21269875907

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{3581}}^1$

素因数の和:3732

約数の個数: 64

約数和(自身を含む): 28225013760

約数和(自身を除く): 6955137853

約数列:

[1, 7, 17, 19, 37, 71, 119, 133, 259, 323, 497, 629, 703, 1207, 1349, 2261, 2627, 3581, 4403, 4921, 8449, 9443, 11951, 18389, 22933, 25067, 44659, 49913, 60877, 68039, 83657, 132497, 160531, 254251, 312613, 349391, 426139, 476273, 848521, 927479, 1156663, 1779757, 2252449, 2517443, 4322267, 4830769, 5939647, 8096641, 9407287, 15767143, 17622101, 30255869, 33815383, 42796531, 65851009, 82123073, 159923879, 178738453, 299575717, 574861511, 1119467153, 1251169171, 3038553701, 21269875907]

約数ペア:

[(1, 21269875907), (7, 3038553701), (17, 1251169171), (19, 1119467153), (37, 574861511), (71, 299575717), (119, 178738453), (133, 159923879), (259, 82123073), (323, 65851009), (497, 42796531), (629, 33815383), (703, 30255869), (1207, 17622101), (1349, 15767143), (2261, 9407287), (2627, 8096641), (3581, 5939647), (4403, 4830769), (4921, 4322267), (8449, 2517443), (9443, 2252449), (11951, 1779757), (18389, 1156663), (22933, 927479), (25067, 848521), (44659, 476273), (49913, 426139), (60877, 349391), (68039, 312613), (83657, 254251), (132497, 160531)]