17988507

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{349}}^1$

素因数の和:464

約数の個数: 32

約数和(自身を含む): 28224000

約数和(自身を除く): 10235493

約数列:

[1, 3, 9, 23, 27, 69, 83, 207, 249, 349, 621, 747, 1047, 1909, 2241, 3141, 5727, 8027, 9423, 17181, 24081, 28967, 51543, 72243, 86901, 216729, 260703, 666241, 782109, 1998723, 5996169, 17988507]

約数ペア:

[(1, 17988507), (3, 5996169), (9, 1998723), (23, 782109), (27, 666241), (69, 260703), (83, 216729), (207, 86901), (249, 72243), (349, 51543), (621, 28967), (747, 24081), (1047, 17181), (1909, 9423), (2241, 8027), (3141, 5727)]