18122979

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{857}}^1$

素因数の和:939

約数の個数: 32

約数和(自身を含む): 29652480

約数和(自身を除く): 11529501

約数列:

[1, 3, 7, 19, 21, 53, 57, 133, 159, 371, 399, 857, 1007, 1113, 2571, 3021, 5999, 7049, 16283, 17997, 21147, 45421, 48849, 113981, 136263, 317947, 341943, 862999, 953841, 2588997, 6040993, 18122979]

約数ペア:

[(1, 18122979), (3, 6040993), (7, 2588997), (19, 953841), (21, 862999), (53, 341943), (57, 317947), (133, 136263), (159, 113981), (371, 48849), (399, 45421), (857, 21147), (1007, 17997), (1113, 16283), (2571, 7049), (3021, 5999)]