21869580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{937}}^1$

素因数の和:1338

約数の個数: 48

約数和(自身を含む): 61457760

約数和(自身を除く): 39588180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 389, 778, 937, 1167, 1556, 1874, 1945, 2334, 2811, 3748, 3890, 4668, 4685, 5622, 5835, 7780, 9370, 11244, 11670, 14055, 18740, 23340, 28110, 56220, 364493, 728986, 1093479, 1457972, 1822465, 2186958, 3644930, 4373916, 5467395, 7289860, 10934790, 21869580]

約数ペア:

[(1, 21869580), (2, 10934790), (3, 7289860), (4, 5467395), (5, 4373916), (6, 3644930), (10, 2186958), (12, 1822465), (15, 1457972), (20, 1093479), (30, 728986), (60, 364493), (389, 56220), (778, 28110), (937, 23340), (1167, 18740), (1556, 14055), (1874, 11670), (1945, 11244), (2334, 9370), (2811, 7780), (3748, 5835), (3890, 5622), (4668, 4685)]