20864488

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{84131}}^1$

素因数の和:84168

約数の個数: 16

約数和(自身を含む): 40383360

約数和(自身を除く): 19518872

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 84131, 168262, 336524, 673048, 2608061, 5216122, 10432244, 20864488]

約数ペア:

[(1, 20864488), (2, 10432244), (4, 5216122), (8, 2608061), (31, 673048), (62, 336524), (124, 168262), (248, 84131)]