20804948919

素因数分解:

$3^2\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{238291}}^1$

素因数の和:238495

約数の個数: 24

約数和(自身を含む): 30668180400

約数和(自身を除く): 9863231481

約数列:

[1, 3, 9, 89, 109, 267, 327, 801, 981, 9701, 29103, 87309, 238291, 714873, 2144619, 21207899, 25973719, 63623697, 77921157, 190871091, 233763471, 2311660991, 6934982973, 20804948919]

約数ペア:

[(1, 20804948919), (3, 6934982973), (9, 2311660991), (89, 233763471), (109, 190871091), (267, 77921157), (327, 63623697), (801, 25973719), (981, 21207899), (9701, 2144619), (29103, 714873), (87309, 238291)]