905639427

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{227}}^1$

素因数の和:374

約数の個数: 128

約数和(自身を含む): 1786060800

約数和(自身を除く): 880421373

約数列:

[1, 3, 7, 9, 11, 19, 21, 27, 33, 57, 63, 77, 99, 101, 133, 171, 189, 209, 227, 231, 297, 303, 399, 513, 627, 681, 693, 707, 909, 1111, 1197, 1463, 1589, 1881, 1919, 2043, 2079, 2121, 2497, 2727, 3333, 3591, 4313, 4389, 4767, 5643, 5757, 6129, 6363, 7491, 7777, 9999, 12939, 13167, 13433, 14301, 17271, 17479, 19089, 21109, 22473, 22927, 23331, 29997, 30191, 38817, 39501, 40299, 42903, 47443, 51813, 52437, 63327, 67419, 68781, 69993, 90573, 116451, 120897, 142329, 147763, 157311, 160489, 189981, 206343, 209979, 252197, 271719, 332101, 362691, 426987, 435613, 443289, 471933, 481467, 569943, 619029, 756591, 815157, 996303, 1280961, 1306839, 1329867, 1444401, 1765379, 2269773, 2988909, 3049291, 3920517, 3989601, 4333203, 4791743, 5296137, 6809319, 8966727, 9147873, 11761551, 14375229, 15888411, 27443619, 33542201, 43125687, 47665233, 82330857, 100626603, 129377061, 301879809, 905639427]

約数ペア:

[(1, 905639427), (3, 301879809), (7, 129377061), (9, 100626603), (11, 82330857), (19, 47665233), (21, 43125687), (27, 33542201), (33, 27443619), (57, 15888411), (63, 14375229), (77, 11761551), (99, 9147873), (101, 8966727), (133, 6809319), (171, 5296137), (189, 4791743), (209, 4333203), (227, 3989601), (231, 3920517), (297, 3049291), (303, 2988909), (399, 2269773), (513, 1765379), (627, 1444401), (681, 1329867), (693, 1306839), (707, 1280961), (909, 996303), (1111, 815157), (1197, 756591), (1463, 619029), (1589, 569943), (1881, 481467), (1919, 471933), (2043, 443289), (2079, 435613), (2121, 426987), (2497, 362691), (2727, 332101), (3333, 271719), (3591, 252197), (4313, 209979), (4389, 206343), (4767, 189981), (5643, 160489), (5757, 157311), (6129, 147763), (6363, 142329), (7491, 120897), (7777, 116451), (9999, 90573), (12939, 69993), (13167, 68781), (13433, 67419), (14301, 63327), (17271, 52437), (17479, 51813), (19089, 47443), (21109, 42903), (22473, 40299), (22927, 39501), (23331, 38817), (29997, 30191)]