21031888660

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{594457}}^1$

素因数の和:594556

約数の個数: 48

約数和(自身を含む): 46439058960

約数和(自身を除く): 25407170300

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 116, 122, 145, 244, 290, 305, 580, 610, 1220, 1769, 3538, 7076, 8845, 17690, 35380, 594457, 1188914, 2377828, 2972285, 5944570, 11889140, 17239253, 34478506, 36261877, 68957012, 72523754, 86196265, 145047508, 172392530, 181309385, 344785060, 362618770, 725237540, 1051594433, 2103188866, 4206377732, 5257972165, 10515944330, 21031888660]

約数ペア:

[(1, 21031888660), (2, 10515944330), (4, 5257972165), (5, 4206377732), (10, 2103188866), (20, 1051594433), (29, 725237540), (58, 362618770), (61, 344785060), (116, 181309385), (122, 172392530), (145, 145047508), (244, 86196265), (290, 72523754), (305, 68957012), (580, 36261877), (610, 34478506), (1220, 17239253), (1769, 11889140), (3538, 5944570), (7076, 2972285), (8845, 2377828), (17690, 1188914), (35380, 594457)]