19906506

素因数分解:

$2^1\times 3^3\times {\mathrm{43}}^1\times {\mathrm{8573}}^1$

素因数の和:8627

約数の個数: 32

約数和(自身を含む): 45270720

約数和(自身を除く): 25364214

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 86, 129, 258, 387, 774, 1161, 2322, 8573, 17146, 25719, 51438, 77157, 154314, 231471, 368639, 462942, 737278, 1105917, 2211834, 3317751, 6635502, 9953253, 19906506]

約数ペア:

[(1, 19906506), (2, 9953253), (3, 6635502), (6, 3317751), (9, 2211834), (18, 1105917), (27, 737278), (43, 462942), (54, 368639), (86, 231471), (129, 154314), (258, 77157), (387, 51438), (774, 25719), (1161, 17146), (2322, 8573)]