68689431

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{2087}}^1$

素因数の和:2172

約数の個数: 32

約数和(自身を含む): 108241920

約数和(自身を除く): 39552489

約数列:

[1, 3, 9, 23, 27, 53, 69, 159, 207, 477, 621, 1219, 1431, 2087, 3657, 6261, 10971, 18783, 32913, 48001, 56349, 110611, 144003, 331833, 432009, 995499, 1296027, 2544053, 2986497, 7632159, 22896477, 68689431]

約数ペア:

[(1, 68689431), (3, 22896477), (9, 7632159), (23, 2986497), (27, 2544053), (53, 1296027), (69, 995499), (159, 432009), (207, 331833), (477, 144003), (621, 110611), (1219, 56349), (1431, 48001), (2087, 32913), (3657, 18783), (6261, 10971)]