285216981

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1\times {\mathrm{467}}^1$

素因数の和:833

約数の個数: 32

約数和(自身を含む): 440893440

約数和(自身を除く): 155676459

約数列:

[1, 3, 7, 21, 127, 229, 381, 467, 687, 889, 1401, 1603, 2667, 3269, 4809, 9807, 29083, 59309, 87249, 106943, 177927, 203581, 320829, 415163, 610743, 748601, 1245489, 2245803, 13581761, 40745283, 95072327, 285216981]

約数ペア:

[(1, 285216981), (3, 95072327), (7, 40745283), (21, 13581761), (127, 2245803), (229, 1245489), (381, 748601), (467, 610743), (687, 415163), (889, 320829), (1401, 203581), (1603, 177927), (2667, 106943), (3269, 87249), (4809, 59309), (9807, 29083)]