21102578

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79333}}^1$

素因数の和:79361

約数の個数: 16

約数和(自身を含む): 38080320

約数和(自身を除く): 16977742

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 79333, 158666, 555331, 1110662, 1507327, 3014654, 10551289, 21102578]

約数ペア:

[(1, 21102578), (2, 10551289), (7, 3014654), (14, 1507327), (19, 1110662), (38, 555331), (133, 158666), (266, 79333)]