20797028

素因数分解:

$2^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{12589}}^1$

素因数の和:12659

約数の個数: 24

約数和(自身を含む): 42302400

約数和(自身を除く): 21505372

約数列:

[1, 2, 4, 7, 14, 28, 59, 118, 236, 413, 826, 1652, 12589, 25178, 50356, 88123, 176246, 352492, 742751, 1485502, 2971004, 5199257, 10398514, 20797028]

約数ペア:

[(1, 20797028), (2, 10398514), (4, 5199257), (7, 2971004), (14, 1485502), (28, 742751), (59, 352492), (118, 176246), (236, 88123), (413, 50356), (826, 25178), (1652, 12589)]