212781177

素因数分解:

$3^2\times 7^2\times {\mathrm{173}}^1\times {\mathrm{2789}}^1$

素因数の和:2982

約数の個数: 36

約数和(自身を含む): 359725860

約数和(自身を除く): 146944683

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 173, 441, 519, 1211, 1557, 2789, 3633, 8367, 8477, 10899, 19523, 25101, 25431, 58569, 76293, 136661, 175707, 409983, 482497, 1229949, 1447491, 3377479, 4342473, 10132437, 23642353, 30397311, 70927059, 212781177]

約数ペア:

[(1, 212781177), (3, 70927059), (7, 30397311), (9, 23642353), (21, 10132437), (49, 4342473), (63, 3377479), (147, 1447491), (173, 1229949), (441, 482497), (519, 409983), (1211, 175707), (1557, 136661), (2789, 76293), (3633, 58569), (8367, 25431), (8477, 25101), (10899, 19523)]