20147102781

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{427997}}^1$

素因数の和:428101

約数の個数: 32

約数和(自身を含む): 31062382848

約数和(自身を除く): 10915280067

約数列:

[1, 3, 13, 17, 39, 51, 71, 213, 221, 663, 923, 1207, 2769, 3621, 15691, 47073, 427997, 1283991, 5563961, 7275949, 16691883, 21827847, 30387787, 91163361, 94587337, 283762011, 395041231, 516592379, 1185123693, 1549777137, 6715700927, 20147102781]

約数ペア:

[(1, 20147102781), (3, 6715700927), (13, 1549777137), (17, 1185123693), (39, 516592379), (51, 395041231), (71, 283762011), (213, 94587337), (221, 91163361), (663, 30387787), (923, 21827847), (1207, 16691883), (2769, 7275949), (3621, 5563961), (15691, 1283991), (47073, 427997)]