21651360

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1049}}^1$

素因数の和:1110

約数の個数: 96

約数和(自身を含む): 69854400

約数和(自身を除く): 48203040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 80, 86, 96, 120, 129, 160, 172, 215, 240, 258, 344, 430, 480, 516, 645, 688, 860, 1032, 1049, 1290, 1376, 1720, 2064, 2098, 2580, 3147, 3440, 4128, 4196, 5160, 5245, 6294, 6880, 8392, 10320, 10490, 12588, 15735, 16784, 20640, 20980, 25176, 31470, 33568, 41960, 45107, 50352, 62940, 83920, 90214, 100704, 125880, 135321, 167840, 180428, 225535, 251760, 270642, 360856, 451070, 503520, 541284, 676605, 721712, 902140, 1082568, 1353210, 1443424, 1804280, 2165136, 2706420, 3608560, 4330272, 5412840, 7217120, 10825680, 21651360]

約数ペア:

[(1, 21651360), (2, 10825680), (3, 7217120), (4, 5412840), (5, 4330272), (6, 3608560), (8, 2706420), (10, 2165136), (12, 1804280), (15, 1443424), (16, 1353210), (20, 1082568), (24, 902140), (30, 721712), (32, 676605), (40, 541284), (43, 503520), (48, 451070), (60, 360856), (80, 270642), (86, 251760), (96, 225535), (120, 180428), (129, 167840), (160, 135321), (172, 125880), (215, 100704), (240, 90214), (258, 83920), (344, 62940), (430, 50352), (480, 45107), (516, 41960), (645, 33568), (688, 31470), (860, 25176), (1032, 20980), (1049, 20640), (1290, 16784), (1376, 15735), (1720, 12588), (2064, 10490), (2098, 10320), (2580, 8392), (3147, 6880), (3440, 6294), (4128, 5245), (4196, 5160)]