20209203

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4649}}^1$

素因数の和:4688

約数の個数: 32

約数和(自身を含む): 35712000

約数和(自身を除く): 15502797

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4347, 4649, 13947, 32543, 41841, 97629, 106927, 125523, 292887, 320781, 748489, 878661, 962343, 2245467, 2887029, 6736401, 20209203]

約数ペア:

[(1, 20209203), (3, 6736401), (7, 2887029), (9, 2245467), (21, 962343), (23, 878661), (27, 748489), (63, 320781), (69, 292887), (161, 125523), (189, 106927), (207, 97629), (483, 41841), (621, 32543), (1449, 13947), (4347, 4649)]