21048156

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{13597}}^1$

素因数の和:13650

約数の個数: 36

約数和(自身を含む): 54446392

約数和(自身を除く): 33398236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 13597, 27194, 40791, 54388, 81582, 122373, 163164, 244746, 489492, 584671, 1169342, 1754013, 2338684, 3508026, 5262039, 7016052, 10524078, 21048156]

約数ペア:

[(1, 21048156), (2, 10524078), (3, 7016052), (4, 5262039), (6, 3508026), (9, 2338684), (12, 1754013), (18, 1169342), (36, 584671), (43, 489492), (86, 244746), (129, 163164), (172, 122373), (258, 81582), (387, 54388), (516, 40791), (774, 27194), (1548, 13597)]