21000779004

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1\times {\mathrm{4999}}^1$

素因数の和:5551

約数の個数: 96

約数和(自身を含む): 52899840000

約数和(自身を除く): 31899060996

約数列:

[1, 2, 3, 4, 6, 12, 23, 31, 46, 62, 69, 92, 93, 124, 138, 186, 276, 372, 491, 713, 982, 1426, 1473, 1964, 2139, 2852, 2946, 4278, 4999, 5892, 8556, 9998, 11293, 14997, 15221, 19996, 22586, 29994, 30442, 33879, 45172, 45663, 59988, 60884, 67758, 91326, 114977, 135516, 154969, 182652, 229954, 309938, 344931, 350083, 459908, 464907, 619876, 689862, 700166, 929814, 1050249, 1379724, 1400332, 1859628, 2100498, 2454509, 3564287, 4200996, 4909018, 7128574, 7363527, 9818036, 10692861, 14257148, 14727054, 21385722, 29454108, 42771444, 56453707, 76089779, 112907414, 152179558, 169361121, 225814828, 228269337, 304359116, 338722242, 456538674, 677444484, 913077348, 1750064917, 3500129834, 5250194751, 7000259668, 10500389502, 21000779004]

約数ペア:

[(1, 21000779004), (2, 10500389502), (3, 7000259668), (4, 5250194751), (6, 3500129834), (12, 1750064917), (23, 913077348), (31, 677444484), (46, 456538674), (62, 338722242), (69, 304359116), (92, 228269337), (93, 225814828), (124, 169361121), (138, 152179558), (186, 112907414), (276, 76089779), (372, 56453707), (491, 42771444), (713, 29454108), (982, 21385722), (1426, 14727054), (1473, 14257148), (1964, 10692861), (2139, 9818036), (2852, 7363527), (2946, 7128574), (4278, 4909018), (4999, 4200996), (5892, 3564287), (8556, 2454509), (9998, 2100498), (11293, 1859628), (14997, 1400332), (15221, 1379724), (19996, 1050249), (22586, 929814), (29994, 700166), (30442, 689862), (33879, 619876), (45172, 464907), (45663, 459908), (59988, 350083), (60884, 344931), (67758, 309938), (91326, 229954), (114977, 182652), (135516, 154969)]