20653616

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18181}}^1$

素因数の和:18260

約数の個数: 20

約数和(自身を含む): 40582224

約数和(自身を除く): 19928608

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18181, 36362, 72724, 145448, 290896, 1290851, 2581702, 5163404, 10326808, 20653616]

約数ペア:

[(1, 20653616), (2, 10326808), (4, 5163404), (8, 2581702), (16, 1290851), (71, 290896), (142, 145448), (284, 72724), (568, 36362), (1136, 18181)]