639777618

素因数分解:

$2^1\times 3^2\times {\mathrm{35543201}}^1$

素因数の和:35543209

約数の個数: 12

約数和(自身を含む): 1386184878

約数和(自身を除く): 746407260

約数列:

[1, 2, 3, 6, 9, 18, 35543201, 71086402, 106629603, 213259206, 319888809, 639777618]

約数ペア:

[(1, 639777618), (2, 319888809), (3, 213259206), (6, 106629603), (9, 71086402), (18, 35543201)]