212949

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{239}}^1$

素因数の和:262

約数の個数: 20

約数和(自身を含む): 348480

約数和(自身を除く): 135531

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 239, 297, 717, 891, 2151, 2629, 6453, 7887, 19359, 23661, 70983, 212949]

約数ペア:

[(1, 212949), (3, 70983), (9, 23661), (11, 19359), (27, 7887), (33, 6453), (81, 2629), (99, 2151), (239, 891), (297, 717)]