21099840

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{709}}^1$

素因数の和:760

約数の個数: 112

約数和(自身を含む): 69250560

約数和(自身を除く): 48150720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 155, 160, 186, 192, 240, 248, 310, 320, 372, 465, 480, 496, 620, 709, 744, 930, 960, 992, 1240, 1418, 1488, 1860, 1984, 2127, 2480, 2836, 2976, 3545, 3720, 4254, 4960, 5672, 5952, 7090, 7440, 8508, 9920, 10635, 11344, 14180, 14880, 17016, 21270, 21979, 22688, 28360, 29760, 34032, 42540, 43958, 45376, 56720, 65937, 68064, 85080, 87916, 109895, 113440, 131874, 136128, 170160, 175832, 219790, 226880, 263748, 329685, 340320, 351664, 439580, 527496, 659370, 680640, 703328, 879160, 1054992, 1318740, 1406656, 1758320, 2109984, 2637480, 3516640, 4219968, 5274960, 7033280, 10549920, 21099840]

約数ペア:

[(1, 21099840), (2, 10549920), (3, 7033280), (4, 5274960), (5, 4219968), (6, 3516640), (8, 2637480), (10, 2109984), (12, 1758320), (15, 1406656), (16, 1318740), (20, 1054992), (24, 879160), (30, 703328), (31, 680640), (32, 659370), (40, 527496), (48, 439580), (60, 351664), (62, 340320), (64, 329685), (80, 263748), (93, 226880), (96, 219790), (120, 175832), (124, 170160), (155, 136128), (160, 131874), (186, 113440), (192, 109895), (240, 87916), (248, 85080), (310, 68064), (320, 65937), (372, 56720), (465, 45376), (480, 43958), (496, 42540), (620, 34032), (709, 29760), (744, 28360), (930, 22688), (960, 21979), (992, 21270), (1240, 17016), (1418, 14880), (1488, 14180), (1860, 11344), (1984, 10635), (2127, 9920), (2480, 8508), (2836, 7440), (2976, 7090), (3545, 5952), (3720, 5672), (4254, 4960)]