21137208

素因数分解:

$2^3\times 3^1\times {\mathrm{107}}^1\times {\mathrm{8231}}^1$

素因数の和:8347

約数の個数: 32

約数和(自身を含む): 53343360

約数和(自身を除く): 32206152

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 107, 214, 321, 428, 642, 856, 1284, 2568, 8231, 16462, 24693, 32924, 49386, 65848, 98772, 197544, 880717, 1761434, 2642151, 3522868, 5284302, 7045736, 10568604, 21137208]

約数ペア:

[(1, 21137208), (2, 10568604), (3, 7045736), (4, 5284302), (6, 3522868), (8, 2642151), (12, 1761434), (24, 880717), (107, 197544), (214, 98772), (321, 65848), (428, 49386), (642, 32924), (856, 24693), (1284, 16462), (2568, 8231)]