391527891

素因数分解:

$3^3\times {\mathrm{109}}^1\times {\mathrm{173}}^1\times {\mathrm{769}}^1$

素因数の和:1060

約数の個数: 32

約数和(自身を含む): 589512000

約数和(自身を除く): 197984109

約数列:

[1, 3, 9, 27, 109, 173, 327, 519, 769, 981, 1557, 2307, 2943, 4671, 6921, 18857, 20763, 56571, 83821, 133037, 169713, 251463, 399111, 509139, 754389, 1197333, 2263167, 3591999, 14501033, 43503099, 130509297, 391527891]

約数ペア:

[(1, 391527891), (3, 130509297), (9, 43503099), (27, 14501033), (109, 3591999), (173, 2263167), (327, 1197333), (519, 754389), (769, 509139), (981, 399111), (1557, 251463), (2307, 169713), (2943, 133037), (4671, 83821), (6921, 56571), (18857, 20763)]