18991116

素因数分解:

$2^2\times 3^2\times {\mathrm{563}}^1\times {\mathrm{937}}^1$

素因数の和:1510

約数の個数: 36

約数和(自身を含む): 48141912

約数和(自身を除く): 29150796

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 563, 937, 1126, 1689, 1874, 2252, 2811, 3378, 3748, 5067, 5622, 6756, 8433, 10134, 11244, 16866, 20268, 33732, 527531, 1055062, 1582593, 2110124, 3165186, 4747779, 6330372, 9495558, 18991116]

約数ペア:

[(1, 18991116), (2, 9495558), (3, 6330372), (4, 4747779), (6, 3165186), (9, 2110124), (12, 1582593), (18, 1055062), (36, 527531), (563, 33732), (937, 20268), (1126, 16866), (1689, 11244), (1874, 10134), (2252, 8433), (2811, 6756), (3378, 5622), (3748, 5067)]