7981965

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1993}}^1$

素因数の和:2093

約数の個数: 24

約数和(自身を含む): 13997880

約数和(自身を除く): 6015915

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 1993, 4005, 5979, 9965, 17937, 29895, 89685, 177377, 532131, 886885, 1596393, 2660655, 7981965]

約数ペア:

[(1, 7981965), (3, 2660655), (5, 1596393), (9, 886885), (15, 532131), (45, 177377), (89, 89685), (267, 29895), (445, 17937), (801, 9965), (1335, 5979), (1993, 4005)]