18661965

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1997}}^1$

素因数の和:2101

約数の個数: 32

約数和(自身を含む): 34525440

約数和(自身を除く): 15863475

約数列:

[1, 3, 5, 7, 15, 21, 35, 89, 105, 267, 445, 623, 1335, 1869, 1997, 3115, 5991, 9345, 9985, 13979, 29955, 41937, 69895, 177733, 209685, 533199, 888665, 1244131, 2665995, 3732393, 6220655, 18661965]

約数ペア:

[(1, 18661965), (3, 6220655), (5, 3732393), (7, 2665995), (15, 1244131), (21, 888665), (35, 533199), (89, 209685), (105, 177733), (267, 69895), (445, 41937), (623, 29955), (1335, 13979), (1869, 9985), (1997, 9345), (3115, 5991)]