21607320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{887}}^1$

素因数の和:937

約数の個数: 128

約数和(自身を含む): 76723200

約数和(自身を除く): 55115880

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, 887, 1015, 1160, 1218, 1624, 1740, 1774, 2030, 2436, 2661, 3045, 3480, 3548, 4060, 4435, 4872, 5322, 6090, 6209, 7096, 8120, 8870, 10644, 12180, 12418, 13305, 17740, 18627, 21288, 24360, 24836, 25723, 26610, 31045, 35480, 37254, 49672, 51446, 53220, 62090, 74508, 77169, 93135, 102892, 106440, 124180, 128615, 149016, 154338, 180061, 186270, 205784, 248360, 257230, 308676, 360122, 372540, 385845, 514460, 540183, 617352, 720244, 745080, 771690, 900305, 1028920, 1080366, 1440488, 1543380, 1800610, 2160732, 2700915, 3086760, 3601220, 4321464, 5401830, 7202440, 10803660, 21607320]

約数ペア:

[(1, 21607320), (2, 10803660), (3, 7202440), (4, 5401830), (5, 4321464), (6, 3601220), (7, 3086760), (8, 2700915), (10, 2160732), (12, 1800610), (14, 1543380), (15, 1440488), (20, 1080366), (21, 1028920), (24, 900305), (28, 771690), (29, 745080), (30, 720244), (35, 617352), (40, 540183), (42, 514460), (56, 385845), (58, 372540), (60, 360122), (70, 308676), (84, 257230), (87, 248360), (105, 205784), (116, 186270), (120, 180061), (140, 154338), (145, 149016), (168, 128615), (174, 124180), (203, 106440), (210, 102892), (232, 93135), (280, 77169), (290, 74508), (348, 62090), (406, 53220), (420, 51446), (435, 49672), (580, 37254), (609, 35480), (696, 31045), (812, 26610), (840, 25723), (870, 24836), (887, 24360), (1015, 21288), (1160, 18627), (1218, 17740), (1624, 13305), (1740, 12418), (1774, 12180), (2030, 10644), (2436, 8870), (2661, 8120), (3045, 7096), (3480, 6209), (3548, 6090), (4060, 5322), (4435, 4872)]