28657948

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{12289}}^1$

素因数の和:12357

約数の個数: 24

約数和(自身を含む): 55747440

約数和(自身を除く): 27089492

約数列:

[1, 2, 4, 11, 22, 44, 53, 106, 212, 583, 1166, 2332, 12289, 24578, 49156, 135179, 270358, 540716, 651317, 1302634, 2605268, 7164487, 14328974, 28657948]

約数ペア:

[(1, 28657948), (2, 14328974), (4, 7164487), (11, 2605268), (22, 1302634), (44, 651317), (53, 540716), (106, 270358), (212, 135179), (583, 49156), (1166, 24578), (2332, 12289)]