21139335

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{9587}}^1$

素因数の和:9612

約数の個数: 36

約数和(自身を含む): 42628248

約数和(自身を除く): 21488913

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 9587, 28761, 47935, 67109, 86283, 143805, 201327, 335545, 431415, 469763, 603981, 1006635, 1409289, 2348815, 3019905, 4227867, 7046445, 21139335]

約数ペア:

[(1, 21139335), (3, 7046445), (5, 4227867), (7, 3019905), (9, 2348815), (15, 1409289), (21, 1006635), (35, 603981), (45, 469763), (49, 431415), (63, 335545), (105, 201327), (147, 143805), (245, 86283), (315, 67109), (441, 47935), (735, 28761), (2205, 9587)]