20885571

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19501}}^1$

素因数の和:19531

約数の個数: 24

約数和(自身を含む): 36507744

約数和(自身を除く): 15622173

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 19501, 58503, 136507, 175509, 331517, 409521, 994551, 1228563, 2320619, 2983653, 6961857, 20885571]

約数ペア:

[(1, 20885571), (3, 6961857), (7, 2983653), (9, 2320619), (17, 1228563), (21, 994551), (51, 409521), (63, 331517), (119, 175509), (153, 136507), (357, 58503), (1071, 19501)]