21750001

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1\times {\mathrm{523}}^1$

素因数の和:1000

約数の個数: 16

約数和(自身を含む): 26879104

約数和(自身を除く): 5129103

約数列:

[1, 7, 13, 91, 457, 523, 3199, 3661, 5941, 6799, 41587, 47593, 239011, 1673077, 3107143, 21750001]

約数ペア:

[(1, 21750001), (7, 3107143), (13, 1673077), (91, 239011), (457, 47593), (523, 41587), (3199, 6799), (3661, 5941)]