20961704

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{84523}}^1$

素因数の和:84560

約数の個数: 16

約数和(自身を含む): 40571520

約数和(自身を除く): 19609816

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 84523, 169046, 338092, 676184, 2620213, 5240426, 10480852, 20961704]

約数ペア:

[(1, 20961704), (2, 10480852), (4, 5240426), (8, 2620213), (31, 676184), (62, 338092), (124, 169046), (248, 84523)]