20051469

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:311

約数の個数: 40

約数和(自身を含む): 32060160

約数和(自身を除く): 12008691

約数列:

[1, 3, 9, 23, 27, 47, 69, 81, 141, 207, 229, 423, 621, 687, 1081, 1269, 1863, 2061, 3243, 3807, 5267, 6183, 9729, 10763, 15801, 18549, 29187, 32289, 47403, 87561, 96867, 142209, 247549, 290601, 426627, 742647, 871803, 2227941, 6683823, 20051469]

約数ペア:

[(1, 20051469), (3, 6683823), (9, 2227941), (23, 871803), (27, 742647), (47, 426627), (69, 290601), (81, 247549), (141, 142209), (207, 96867), (229, 87561), (423, 47403), (621, 32289), (687, 29187), (1081, 18549), (1269, 15801), (1863, 10763), (2061, 9729), (3243, 6183), (3807, 5267)]