17979681

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 26640000

約数和(自身を除く): 8660319

約数列:

[1, 3, 19, 29, 57, 73, 87, 149, 219, 447, 551, 1387, 1653, 2117, 2831, 4161, 4321, 6351, 8493, 10877, 12963, 32631, 40223, 82099, 120669, 206663, 246297, 315433, 619989, 946299, 5993227, 17979681]

約数ペア:

[(1, 17979681), (3, 5993227), (19, 946299), (29, 619989), (57, 315433), (73, 246297), (87, 206663), (149, 120669), (219, 82099), (447, 40223), (551, 32631), (1387, 12963), (1653, 10877), (2117, 8493), (2831, 6351), (4161, 4321)]