21407510

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73819}}^1$

素因数の和:73855

約数の個数: 16

約数和(自身を含む): 39862800

約数和(自身を除く): 18455290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 73819, 147638, 369095, 738190, 2140751, 4281502, 10703755, 21407510]

約数ペア:

[(1, 21407510), (2, 10703755), (5, 4281502), (10, 2140751), (29, 738190), (58, 369095), (145, 147638), (290, 73819)]