21410760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:451

約数の個数: 128

約数和(自身を含む): 74649600

約数和(自身を除く): 53238840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 71, 84, 105, 120, 140, 142, 168, 210, 213, 280, 284, 355, 359, 420, 426, 497, 568, 710, 718, 840, 852, 994, 1065, 1077, 1420, 1436, 1491, 1704, 1795, 1988, 2130, 2154, 2485, 2513, 2840, 2872, 2982, 3590, 3976, 4260, 4308, 4970, 5026, 5385, 5964, 7180, 7455, 7539, 8520, 8616, 9940, 10052, 10770, 11928, 12565, 14360, 14910, 15078, 19880, 20104, 21540, 25130, 25489, 29820, 30156, 37695, 43080, 50260, 50978, 59640, 60312, 75390, 76467, 100520, 101956, 127445, 150780, 152934, 178423, 203912, 254890, 301560, 305868, 356846, 382335, 509780, 535269, 611736, 713692, 764670, 892115, 1019560, 1070538, 1427384, 1529340, 1784230, 2141076, 2676345, 3058680, 3568460, 4282152, 5352690, 7136920, 10705380, 21410760]

約数ペア:

[(1, 21410760), (2, 10705380), (3, 7136920), (4, 5352690), (5, 4282152), (6, 3568460), (7, 3058680), (8, 2676345), (10, 2141076), (12, 1784230), (14, 1529340), (15, 1427384), (20, 1070538), (21, 1019560), (24, 892115), (28, 764670), (30, 713692), (35, 611736), (40, 535269), (42, 509780), (56, 382335), (60, 356846), (70, 305868), (71, 301560), (84, 254890), (105, 203912), (120, 178423), (140, 152934), (142, 150780), (168, 127445), (210, 101956), (213, 100520), (280, 76467), (284, 75390), (355, 60312), (359, 59640), (420, 50978), (426, 50260), (497, 43080), (568, 37695), (710, 30156), (718, 29820), (840, 25489), (852, 25130), (994, 21540), (1065, 20104), (1077, 19880), (1420, 15078), (1436, 14910), (1491, 14360), (1704, 12565), (1795, 11928), (1988, 10770), (2130, 10052), (2154, 9940), (2485, 8616), (2513, 8520), (2840, 7539), (2872, 7455), (2982, 7180), (3590, 5964), (3976, 5385), (4260, 5026), (4308, 4970)]