20492451

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{3919}}^1$

素因数の和:4015

約数の個数: 24

約数和(自身を含む): 34245120

約数和(自身を除く): 13752669

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 3919, 5229, 11757, 27433, 35271, 82299, 246897, 325277, 975831, 2276939, 2927493, 6830817, 20492451]

約数ペア:

[(1, 20492451), (3, 6830817), (7, 2927493), (9, 2276939), (21, 975831), (63, 325277), (83, 246897), (249, 82299), (581, 35271), (747, 27433), (1743, 11757), (3919, 5229)]