21392140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{479}}^1$

素因数の和:535

約数の個数: 96

約数和(自身を含む): 58060800

約数和(自身を除く): 36668660

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 29, 35, 44, 55, 58, 70, 77, 110, 116, 140, 145, 154, 203, 220, 290, 308, 319, 385, 406, 479, 580, 638, 770, 812, 958, 1015, 1276, 1540, 1595, 1916, 2030, 2233, 2395, 3190, 3353, 4060, 4466, 4790, 5269, 6380, 6706, 8932, 9580, 10538, 11165, 13412, 13891, 16765, 21076, 22330, 26345, 27782, 33530, 36883, 44660, 52690, 55564, 67060, 69455, 73766, 97237, 105380, 138910, 147532, 152801, 184415, 194474, 277820, 305602, 368830, 388948, 486185, 611204, 737660, 764005, 972370, 1069607, 1528010, 1944740, 2139214, 3056020, 4278428, 5348035, 10696070, 21392140]

約数ペア:

[(1, 21392140), (2, 10696070), (4, 5348035), (5, 4278428), (7, 3056020), (10, 2139214), (11, 1944740), (14, 1528010), (20, 1069607), (22, 972370), (28, 764005), (29, 737660), (35, 611204), (44, 486185), (55, 388948), (58, 368830), (70, 305602), (77, 277820), (110, 194474), (116, 184415), (140, 152801), (145, 147532), (154, 138910), (203, 105380), (220, 97237), (290, 73766), (308, 69455), (319, 67060), (385, 55564), (406, 52690), (479, 44660), (580, 36883), (638, 33530), (770, 27782), (812, 26345), (958, 22330), (1015, 21076), (1276, 16765), (1540, 13891), (1595, 13412), (1916, 11165), (2030, 10538), (2233, 9580), (2395, 8932), (3190, 6706), (3353, 6380), (4060, 5269), (4466, 4790)]