20998110

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{99991}}^1$

素因数の和:100008

約数の個数: 32

約数和(自身を含む): 57595392

約数和(自身を除く): 36597282

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 99991, 199982, 299973, 499955, 599946, 699937, 999910, 1399874, 1499865, 2099811, 2999730, 3499685, 4199622, 6999370, 10499055, 20998110]

約数ペア:

[(1, 20998110), (2, 10499055), (3, 6999370), (5, 4199622), (6, 3499685), (7, 2999730), (10, 2099811), (14, 1499865), (15, 1399874), (21, 999910), (30, 699937), (35, 599946), (42, 499955), (70, 299973), (105, 199982), (210, 99991)]