217848213

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{21787}}^1$

素因数の和:21905

約数の個数: 24

約数和(自身を含む): 346690656

約数和(自身を除く): 128842443

約数列:

[1, 3, 9, 11, 33, 99, 101, 303, 909, 1111, 3333, 9999, 21787, 65361, 196083, 239657, 718971, 2156913, 2200487, 6601461, 19804383, 24205357, 72616071, 217848213]

約数ペア:

[(1, 217848213), (3, 72616071), (9, 24205357), (11, 19804383), (33, 6601461), (99, 2200487), (101, 2156913), (303, 718971), (909, 239657), (1111, 196083), (3333, 65361), (9999, 21787)]