54180721

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1$

素因数の和:385

約数の個数: 24

約数和(自身を含む): 65356200

約数和(自身を除く): 11175479

約数列:

[1, 7, 41, 49, 149, 181, 287, 1043, 1267, 2009, 6109, 7301, 7421, 8869, 26969, 42763, 51947, 188783, 299341, 363629, 1105729, 1321481, 7740103, 54180721]

約数ペア:

[(1, 54180721), (7, 7740103), (41, 1321481), (49, 1105729), (149, 363629), (181, 299341), (287, 188783), (1043, 51947), (1267, 42763), (2009, 26969), (6109, 8869), (7301, 7421)]