131487111

素因数分解:

$3^3\times 7^1\times {\mathrm{257}}^1\times {\mathrm{2707}}^1$

素因数の和:2980

約数の個数: 32

約数和(自身を含む): 223572480

約数和(自身を除く): 92085369

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 257, 771, 1799, 2313, 2707, 5397, 6939, 8121, 16191, 18949, 24363, 48573, 56847, 73089, 170541, 511623, 695699, 2087097, 4869893, 6261291, 14609679, 18783873, 43829037, 131487111]

約数ペア:

[(1, 131487111), (3, 43829037), (7, 18783873), (9, 14609679), (21, 6261291), (27, 4869893), (63, 2087097), (189, 695699), (257, 511623), (771, 170541), (1799, 73089), (2313, 56847), (2707, 48573), (5397, 24363), (6939, 18949), (8121, 16191)]