20316984

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{19687}}^1$

素因数の和:19739

約数の個数: 32

約数和(自身を含む): 51976320

約数和(自身を除く): 31659336

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 19687, 39374, 59061, 78748, 118122, 157496, 236244, 472488, 846541, 1693082, 2539623, 3386164, 5079246, 6772328, 10158492, 20316984]

約数ペア:

[(1, 20316984), (2, 10158492), (3, 6772328), (4, 5079246), (6, 3386164), (8, 2539623), (12, 1693082), (24, 846541), (43, 472488), (86, 236244), (129, 157496), (172, 118122), (258, 78748), (344, 59061), (516, 39374), (1032, 19687)]