28186119

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{383}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 47803392

約数和(自身を除く): 19617273

約数列:

[1, 3, 9, 13, 17, 37, 39, 51, 111, 117, 153, 221, 333, 383, 481, 629, 663, 1149, 1443, 1887, 1989, 3447, 4329, 4979, 5661, 6511, 8177, 14171, 14937, 19533, 24531, 42513, 44811, 58599, 73593, 84643, 127539, 184223, 240907, 253929, 552669, 722721, 761787, 1658007, 2168163, 3131791, 9395373, 28186119]

約数ペア:

[(1, 28186119), (3, 9395373), (9, 3131791), (13, 2168163), (17, 1658007), (37, 761787), (39, 722721), (51, 552669), (111, 253929), (117, 240907), (153, 184223), (221, 127539), (333, 84643), (383, 73593), (481, 58599), (629, 44811), (663, 42513), (1149, 24531), (1443, 19533), (1887, 14937), (1989, 14171), (3447, 8177), (4329, 6511), (4979, 5661)]