28253106

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{311}}^1$

素因数の和:436

約数の個数: 72

約数和(自身を含む): 72131904

約数和(自身を除く): 43878798

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 103, 126, 147, 206, 294, 309, 311, 441, 618, 622, 721, 882, 927, 933, 1442, 1854, 1866, 2163, 2177, 2799, 4326, 4354, 5047, 5598, 6489, 6531, 10094, 12978, 13062, 15141, 15239, 19593, 30282, 30478, 32033, 39186, 45423, 45717, 64066, 90846, 91434, 96099, 137151, 192198, 224231, 274302, 288297, 448462, 576594, 672693, 1345386, 1569617, 2018079, 3139234, 4036158, 4708851, 9417702, 14126553, 28253106]

約数ペア:

[(1, 28253106), (2, 14126553), (3, 9417702), (6, 4708851), (7, 4036158), (9, 3139234), (14, 2018079), (18, 1569617), (21, 1345386), (42, 672693), (49, 576594), (63, 448462), (98, 288297), (103, 274302), (126, 224231), (147, 192198), (206, 137151), (294, 96099), (309, 91434), (311, 90846), (441, 64066), (618, 45717), (622, 45423), (721, 39186), (882, 32033), (927, 30478), (933, 30282), (1442, 19593), (1854, 15239), (1866, 15141), (2163, 13062), (2177, 12978), (2799, 10094), (4326, 6531), (4354, 6489), (5047, 5598)]