21128994

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2381}}^1$

素因数の和:2435

約数の個数: 48

約数和(自身を含む): 50164920

約数和(自身を除く): 29035926

約数列:

[1, 2, 3, 6, 9, 17, 18, 29, 34, 51, 58, 87, 102, 153, 174, 261, 306, 493, 522, 986, 1479, 2381, 2958, 4437, 4762, 7143, 8874, 14286, 21429, 40477, 42858, 69049, 80954, 121431, 138098, 207147, 242862, 364293, 414294, 621441, 728586, 1173833, 1242882, 2347666, 3521499, 7042998, 10564497, 21128994]

約数ペア:

[(1, 21128994), (2, 10564497), (3, 7042998), (6, 3521499), (9, 2347666), (17, 1242882), (18, 1173833), (29, 728586), (34, 621441), (51, 414294), (58, 364293), (87, 242862), (102, 207147), (153, 138098), (174, 121431), (261, 80954), (306, 69049), (493, 42858), (522, 40477), (986, 21429), (1479, 14286), (2381, 8874), (2958, 7143), (4437, 4762)]