638081307

素因数分解:

$3^7\times {\mathrm{139}}^1\times {\mathrm{2099}}^1$

素因数の和:2259

約数の個数: 32

約数和(自身を含む): 964320000

約数和(自身を除く): 326238693

約数列:

[1, 3, 9, 27, 81, 139, 243, 417, 729, 1251, 2099, 2187, 3753, 6297, 11259, 18891, 33777, 56673, 101331, 170019, 291761, 303993, 510057, 875283, 1530171, 2625849, 4590513, 7877547, 23632641, 70897923, 212693769, 638081307]

約数ペア:

[(1, 638081307), (3, 212693769), (9, 70897923), (27, 23632641), (81, 7877547), (139, 4590513), (243, 2625849), (417, 1530171), (729, 875283), (1251, 510057), (2099, 303993), (2187, 291761), (3753, 170019), (6297, 101331), (11259, 56673), (18891, 33777)]