20126991213

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{599}}^1\times {\mathrm{3119}}^1$

素因数の和:3756

約数の個数: 80

約数和(自身を含む): 36241920000

約数和(自身を除く): 16114928787

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 599, 1197, 1539, 1797, 3119, 3591, 4193, 5391, 9357, 10773, 11381, 12579, 16173, 21833, 28071, 34143, 37737, 48519, 59261, 65499, 79667, 84213, 102429, 113211, 177783, 196497, 239001, 252639, 307287, 339633, 414827, 533349, 589491, 717003, 921861, 1244481, 1600047, 1768473, 1868281, 2151009, 3733443, 4800141, 5604843, 6453027, 11200329, 13077967, 16814529, 33600987, 35497339, 39233901, 50443587, 106492017, 117701703, 151330761, 248481373, 319476051, 353105109, 745444119, 958428153, 1059315327, 2236332357, 2875284459, 6708997071, 20126991213]

約数ペア:

[(1, 20126991213), (3, 6708997071), (7, 2875284459), (9, 2236332357), (19, 1059315327), (21, 958428153), (27, 745444119), (57, 353105109), (63, 319476051), (81, 248481373), (133, 151330761), (171, 117701703), (189, 106492017), (399, 50443587), (513, 39233901), (567, 35497339), (599, 33600987), (1197, 16814529), (1539, 13077967), (1797, 11200329), (3119, 6453027), (3591, 5604843), (4193, 4800141), (5391, 3733443), (9357, 2151009), (10773, 1868281), (11381, 1768473), (12579, 1600047), (16173, 1244481), (21833, 921861), (28071, 717003), (34143, 589491), (37737, 533349), (48519, 414827), (59261, 339633), (65499, 307287), (79667, 252639), (84213, 239001), (102429, 196497), (113211, 177783)]