20217272

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{18181}}^1$

素因数の和:18326

約数の個数: 16

約数和(自身を含む): 38182200

約数和(自身を除く): 17964928

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 18181, 36362, 72724, 145448, 2527159, 5054318, 10108636, 20217272]

約数ペア:

[(1, 20217272), (2, 10108636), (4, 5054318), (8, 2527159), (139, 145448), (278, 72724), (556, 36362), (1112, 18181)]