18771822

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:437

約数の個数: 48

約数和(自身を含む): 42282240

約数和(自身を除く): 23510418

約数列:

[1, 2, 3, 6, 9, 18, 43, 79, 86, 129, 158, 237, 258, 307, 387, 474, 614, 711, 774, 921, 1422, 1842, 2763, 3397, 5526, 6794, 10191, 13201, 20382, 24253, 26402, 30573, 39603, 48506, 61146, 72759, 79206, 118809, 145518, 218277, 237618, 436554, 1042879, 2085758, 3128637, 6257274, 9385911, 18771822]

約数ペア:

[(1, 18771822), (2, 9385911), (3, 6257274), (6, 3128637), (9, 2085758), (18, 1042879), (43, 436554), (79, 237618), (86, 218277), (129, 145518), (158, 118809), (237, 79206), (258, 72759), (307, 61146), (387, 48506), (474, 39603), (614, 30573), (711, 26402), (774, 24253), (921, 20382), (1422, 13201), (1842, 10191), (2763, 6794), (3397, 5526)]