646299

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:192

約数の個数: 20

約数和(自身を含む): 987360

約数和(自身を除く): 341061

約数列:

[1, 3, 9, 27, 79, 81, 101, 237, 303, 711, 909, 2133, 2727, 6399, 7979, 8181, 23937, 71811, 215433, 646299]

約数ペア:

[(1, 646299), (3, 215433), (9, 71811), (27, 23937), (79, 8181), (81, 7979), (101, 6399), (237, 2727), (303, 2133), (711, 909)]