20985171

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{4801}}^1$

素因数の和:4882

約数の個数: 16

約数和(自身を含む): 29503488

約数和(自身を除く): 8518317

約数列:

[1, 3, 31, 47, 93, 141, 1457, 4371, 4801, 14403, 148831, 225647, 446493, 676941, 6995057, 20985171]

約数ペア:

[(1, 20985171), (3, 6995057), (31, 676941), (47, 446493), (93, 225647), (141, 148831), (1457, 14403), (4371, 4801)]