81761619

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1621}}^1$

素因数の和:1707

約数の個数: 32

約数和(自身を含む): 123323904

約数和(自身を除く): 41562285

約数列:

[1, 3, 17, 23, 43, 51, 69, 129, 391, 731, 989, 1173, 1621, 2193, 2967, 4863, 16813, 27557, 37283, 50439, 69703, 82671, 111849, 209109, 633811, 1184951, 1603169, 1901433, 3554853, 4809507, 27253873, 81761619]

約数ペア:

[(1, 81761619), (3, 27253873), (17, 4809507), (23, 3554853), (43, 1901433), (51, 1603169), (69, 1184951), (129, 633811), (391, 209109), (731, 111849), (989, 82671), (1173, 69703), (1621, 50439), (2193, 37283), (2967, 27557), (4863, 16813)]