19982776

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2341}}^1$

素因数の和:2455

約数の個数: 32

約数和(自身を含む): 41312880

約数和(自身を除く): 21330104

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 97, 194, 388, 776, 1067, 2134, 2341, 4268, 4682, 8536, 9364, 18728, 25751, 51502, 103004, 206008, 227077, 454154, 908308, 1816616, 2497847, 4995694, 9991388, 19982776]

約数ペア:

[(1, 19982776), (2, 9991388), (4, 4995694), (8, 2497847), (11, 1816616), (22, 908308), (44, 454154), (88, 227077), (97, 206008), (194, 103004), (388, 51502), (776, 25751), (1067, 18728), (2134, 9364), (2341, 8536), (4268, 4682)]