20121003

素因数分解:

$3^2\times 7^1\times {\mathrm{277}}^1\times {\mathrm{1153}}^1$

素因数の和:1443

約数の個数: 24

約数和(自身を含む): 33364448

約数和(自身を除く): 13243445

約数列:

[1, 3, 7, 9, 21, 63, 277, 831, 1153, 1939, 2493, 3459, 5817, 8071, 10377, 17451, 24213, 72639, 319381, 958143, 2235667, 2874429, 6707001, 20121003]

約数ペア:

[(1, 20121003), (3, 6707001), (7, 2874429), (9, 2235667), (21, 958143), (63, 319381), (277, 72639), (831, 24213), (1153, 17451), (1939, 10377), (2493, 8071), (3459, 5817)]