21461160

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{881}}^1$

素因数の和:931

約数の個数: 128

約数和(自身を含む): 76204800

約数和(自身を除く): 54743640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 29, 30, 35, 40, 42, 56, 58, 60, 70, 84, 87, 105, 116, 120, 140, 145, 168, 174, 203, 210, 232, 280, 290, 348, 406, 420, 435, 580, 609, 696, 812, 840, 870, 881, 1015, 1160, 1218, 1624, 1740, 1762, 2030, 2436, 2643, 3045, 3480, 3524, 4060, 4405, 4872, 5286, 6090, 6167, 7048, 8120, 8810, 10572, 12180, 12334, 13215, 17620, 18501, 21144, 24360, 24668, 25549, 26430, 30835, 35240, 37002, 49336, 51098, 52860, 61670, 74004, 76647, 92505, 102196, 105720, 123340, 127745, 148008, 153294, 178843, 185010, 204392, 246680, 255490, 306588, 357686, 370020, 383235, 510980, 536529, 613176, 715372, 740040, 766470, 894215, 1021960, 1073058, 1430744, 1532940, 1788430, 2146116, 2682645, 3065880, 3576860, 4292232, 5365290, 7153720, 10730580, 21461160]

約数ペア:

[(1, 21461160), (2, 10730580), (3, 7153720), (4, 5365290), (5, 4292232), (6, 3576860), (7, 3065880), (8, 2682645), (10, 2146116), (12, 1788430), (14, 1532940), (15, 1430744), (20, 1073058), (21, 1021960), (24, 894215), (28, 766470), (29, 740040), (30, 715372), (35, 613176), (40, 536529), (42, 510980), (56, 383235), (58, 370020), (60, 357686), (70, 306588), (84, 255490), (87, 246680), (105, 204392), (116, 185010), (120, 178843), (140, 153294), (145, 148008), (168, 127745), (174, 123340), (203, 105720), (210, 102196), (232, 92505), (280, 76647), (290, 74004), (348, 61670), (406, 52860), (420, 51098), (435, 49336), (580, 37002), (609, 35240), (696, 30835), (812, 26430), (840, 25549), (870, 24668), (881, 24360), (1015, 21144), (1160, 18501), (1218, 17620), (1624, 13215), (1740, 12334), (1762, 12180), (2030, 10572), (2436, 8810), (2643, 8120), (3045, 7048), (3480, 6167), (3524, 6090), (4060, 5286), (4405, 4872)]