21068835

素因数分解:

$3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{13127}}^1$

素因数の和:13242

約数の個数: 16

約数和(自身を含む): 34027776

約数和(自身を除く): 12958941

約数列:

[1, 3, 5, 15, 107, 321, 535, 1605, 13127, 39381, 65635, 196905, 1404589, 4213767, 7022945, 21068835]

約数ペア:

[(1, 21068835), (3, 7022945), (5, 4213767), (15, 1404589), (107, 196905), (321, 65635), (535, 39381), (1605, 13127)]