20070423

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{7993}}^1$

素因数の和:8036

約数の個数: 20

約数和(自身を含む): 30952768

約数和(自身を除く): 10882345

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 7993, 23979, 71937, 215811, 247783, 647433, 743349, 2230047, 6690141, 20070423]

約数ペア:

[(1, 20070423), (3, 6690141), (9, 2230047), (27, 743349), (31, 647433), (81, 247783), (93, 215811), (279, 71937), (837, 23979), (2511, 7993)]