19986159

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1\times {\mathrm{347}}^1$

素因数の和:686

約数の個数: 16

約数和(自身を含む): 27194112

約数和(自身を除く): 7207953

約数列:

[1, 3, 73, 219, 263, 347, 789, 1041, 19199, 25331, 57597, 75993, 91261, 273783, 6662053, 19986159]

約数ペア:

[(1, 19986159), (3, 6662053), (73, 273783), (219, 91261), (263, 75993), (347, 57597), (789, 25331), (1041, 19199)]