21417840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:367

約数の個数: 120

約数和(自身を含む): 72772128

約数和(自身を除く): 51354288

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 151, 180, 197, 240, 302, 360, 394, 453, 591, 604, 720, 755, 788, 906, 985, 1182, 1208, 1359, 1510, 1576, 1773, 1812, 1970, 2265, 2364, 2416, 2718, 2955, 3020, 3152, 3546, 3624, 3940, 4530, 4728, 5436, 5910, 6040, 6795, 7092, 7248, 7880, 8865, 9060, 9456, 10872, 11820, 12080, 13590, 14184, 15760, 17730, 18120, 21744, 23640, 27180, 28368, 29747, 35460, 36240, 47280, 54360, 59494, 70920, 89241, 108720, 118988, 141840, 148735, 178482, 237976, 267723, 297470, 356964, 446205, 475952, 535446, 594940, 713928, 892410, 1070892, 1189880, 1338615, 1427856, 1784820, 2141784, 2379760, 2677230, 3569640, 4283568, 5354460, 7139280, 10708920, 21417840]

約数ペア:

[(1, 21417840), (2, 10708920), (3, 7139280), (4, 5354460), (5, 4283568), (6, 3569640), (8, 2677230), (9, 2379760), (10, 2141784), (12, 1784820), (15, 1427856), (16, 1338615), (18, 1189880), (20, 1070892), (24, 892410), (30, 713928), (36, 594940), (40, 535446), (45, 475952), (48, 446205), (60, 356964), (72, 297470), (80, 267723), (90, 237976), (120, 178482), (144, 148735), (151, 141840), (180, 118988), (197, 108720), (240, 89241), (302, 70920), (360, 59494), (394, 54360), (453, 47280), (591, 36240), (604, 35460), (720, 29747), (755, 28368), (788, 27180), (906, 23640), (985, 21744), (1182, 18120), (1208, 17730), (1359, 15760), (1510, 14184), (1576, 13590), (1773, 12080), (1812, 11820), (1970, 10872), (2265, 9456), (2364, 9060), (2416, 8865), (2718, 7880), (2955, 7248), (3020, 7092), (3152, 6795), (3546, 6040), (3624, 5910), (3940, 5436), (4530, 4728)]