21206568

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{20549}}^1$

素因数の和:20601

約数の個数: 32

約数和(自身を含む): 54252000

約数和(自身を除く): 33045432

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 20549, 41098, 61647, 82196, 123294, 164392, 246588, 493176, 883607, 1767214, 2650821, 3534428, 5301642, 7068856, 10603284, 21206568]

約数ペア:

[(1, 21206568), (2, 10603284), (3, 7068856), (4, 5301642), (6, 3534428), (8, 2650821), (12, 1767214), (24, 883607), (43, 493176), (86, 246588), (129, 164392), (172, 123294), (258, 82196), (344, 61647), (516, 41098), (1032, 20549)]