21281330983703

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2812386809}}^1$

素因数の和:2812386886

約数の個数: 16

約数和(自身を含む): 25918956840960

約数和(自身を除く): 4637625857257

約数列:

[1, 7, 23, 47, 161, 329, 1081, 7567, 2812386809, 19686707663, 64684896607, 132182180023, 452794276249, 925275260161, 3040190140529, 21281330983703]

約数ペア:

[(1, 21281330983703), (7, 3040190140529), (23, 925275260161), (47, 452794276249), (161, 132182180023), (329, 64684896607), (1081, 19686707663), (7567, 2812386809)]