21407112

素因数分解:

$2^3\times 3^3\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:208

約数の個数: 128

約数和(自身を含む): 64512000

約数和(自身を除く): 43104888

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 27, 31, 36, 46, 54, 62, 69, 72, 92, 93, 108, 124, 138, 139, 184, 186, 207, 216, 248, 276, 278, 279, 372, 414, 417, 552, 556, 558, 621, 713, 744, 828, 834, 837, 1112, 1116, 1242, 1251, 1426, 1656, 1668, 1674, 2139, 2232, 2484, 2502, 2852, 3197, 3336, 3348, 3753, 4278, 4309, 4968, 5004, 5704, 6394, 6417, 6696, 7506, 8556, 8618, 9591, 10008, 12788, 12834, 12927, 15012, 17112, 17236, 19182, 19251, 25576, 25668, 25854, 28773, 30024, 34472, 38364, 38502, 38781, 51336, 51708, 57546, 76728, 77004, 77562, 86319, 99107, 103416, 115092, 116343, 154008, 155124, 172638, 198214, 230184, 232686, 297321, 310248, 345276, 396428, 465372, 594642, 690552, 792856, 891963, 930744, 1189284, 1783926, 2378568, 2675889, 3567852, 5351778, 7135704, 10703556, 21407112]

約数ペア:

[(1, 21407112), (2, 10703556), (3, 7135704), (4, 5351778), (6, 3567852), (8, 2675889), (9, 2378568), (12, 1783926), (18, 1189284), (23, 930744), (24, 891963), (27, 792856), (31, 690552), (36, 594642), (46, 465372), (54, 396428), (62, 345276), (69, 310248), (72, 297321), (92, 232686), (93, 230184), (108, 198214), (124, 172638), (138, 155124), (139, 154008), (184, 116343), (186, 115092), (207, 103416), (216, 99107), (248, 86319), (276, 77562), (278, 77004), (279, 76728), (372, 57546), (414, 51708), (417, 51336), (552, 38781), (556, 38502), (558, 38364), (621, 34472), (713, 30024), (744, 28773), (828, 25854), (834, 25668), (837, 25576), (1112, 19251), (1116, 19182), (1242, 17236), (1251, 17112), (1426, 15012), (1656, 12927), (1668, 12834), (1674, 12788), (2139, 10008), (2232, 9591), (2484, 8618), (2502, 8556), (2852, 7506), (3197, 6696), (3336, 6417), (3348, 6394), (3753, 5704), (4278, 5004), (4309, 4968)]