21407578

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{863}}^1$

素因数の和:1101

約数の個数: 16

約数和(自身を含む): 32762880

約数和(自身を除く): 11355302

約数列:

[1, 2, 79, 157, 158, 314, 863, 1726, 12403, 24806, 68177, 135491, 136354, 270982, 10703789, 21407578]

約数ペア:

[(1, 21407578), (2, 10703789), (79, 270982), (157, 136354), (158, 135491), (314, 68177), (863, 24806), (1726, 12403)]