21679630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{977}}^1$

素因数の和:1308

約数の個数: 32

約数和(自身を含む): 44784576

約数和(自身を除く): 23104946

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 317, 634, 977, 1585, 1954, 2219, 3170, 4438, 4885, 6839, 9770, 11095, 13678, 22190, 34195, 68390, 309709, 619418, 1548545, 2167963, 3097090, 4335926, 10839815, 21679630]

約数ペア:

[(1, 21679630), (2, 10839815), (5, 4335926), (7, 3097090), (10, 2167963), (14, 1548545), (35, 619418), (70, 309709), (317, 68390), (634, 34195), (977, 22190), (1585, 13678), (1954, 11095), (2219, 9770), (3170, 6839), (4438, 4885)]