21084960

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:171

約数の個数: 192

約数和(自身を含む): 74511360

約数和(自身を除く): 53426400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 31, 32, 39, 40, 48, 52, 60, 62, 65, 78, 80, 93, 96, 104, 109, 120, 124, 130, 155, 156, 160, 186, 195, 208, 218, 240, 248, 260, 310, 312, 327, 372, 390, 403, 416, 436, 465, 480, 496, 520, 545, 620, 624, 654, 744, 780, 806, 872, 930, 992, 1040, 1090, 1209, 1240, 1248, 1308, 1417, 1488, 1560, 1612, 1635, 1744, 1860, 2015, 2080, 2180, 2418, 2480, 2616, 2834, 2976, 3120, 3224, 3270, 3379, 3488, 3720, 4030, 4251, 4360, 4836, 4960, 5232, 5668, 6045, 6240, 6448, 6540, 6758, 7085, 7440, 8060, 8502, 8720, 9672, 10137, 10464, 11336, 12090, 12896, 13080, 13516, 14170, 14880, 16120, 16895, 17004, 17440, 19344, 20274, 21255, 22672, 24180, 26160, 27032, 28340, 32240, 33790, 34008, 38688, 40548, 42510, 43927, 45344, 48360, 50685, 52320, 54064, 56680, 64480, 67580, 68016, 81096, 85020, 87854, 96720, 101370, 108128, 113360, 131781, 135160, 136032, 162192, 170040, 175708, 193440, 202740, 219635, 226720, 263562, 270320, 324384, 340080, 351416, 405480, 439270, 527124, 540640, 658905, 680160, 702832, 810960, 878540, 1054248, 1317810, 1405664, 1621920, 1757080, 2108496, 2635620, 3514160, 4216992, 5271240, 7028320, 10542480, 21084960]

約数ペア:

[(1, 21084960), (2, 10542480), (3, 7028320), (4, 5271240), (5, 4216992), (6, 3514160), (8, 2635620), (10, 2108496), (12, 1757080), (13, 1621920), (15, 1405664), (16, 1317810), (20, 1054248), (24, 878540), (26, 810960), (30, 702832), (31, 680160), (32, 658905), (39, 540640), (40, 527124), (48, 439270), (52, 405480), (60, 351416), (62, 340080), (65, 324384), (78, 270320), (80, 263562), (93, 226720), (96, 219635), (104, 202740), (109, 193440), (120, 175708), (124, 170040), (130, 162192), (155, 136032), (156, 135160), (160, 131781), (186, 113360), (195, 108128), (208, 101370), (218, 96720), (240, 87854), (248, 85020), (260, 81096), (310, 68016), (312, 67580), (327, 64480), (372, 56680), (390, 54064), (403, 52320), (416, 50685), (436, 48360), (465, 45344), (480, 43927), (496, 42510), (520, 40548), (545, 38688), (620, 34008), (624, 33790), (654, 32240), (744, 28340), (780, 27032), (806, 26160), (872, 24180), (930, 22672), (992, 21255), (1040, 20274), (1090, 19344), (1209, 17440), (1240, 17004), (1248, 16895), (1308, 16120), (1417, 14880), (1488, 14170), (1560, 13516), (1612, 13080), (1635, 12896), (1744, 12090), (1860, 11336), (2015, 10464), (2080, 10137), (2180, 9672), (2418, 8720), (2480, 8502), (2616, 8060), (2834, 7440), (2976, 7085), (3120, 6758), (3224, 6540), (3270, 6448), (3379, 6240), (3488, 6045), (3720, 5668), (4030, 5232), (4251, 4960), (4360, 4836)]