21204532

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{279007}}^1$

素因数の和:279030

約数の個数: 12

約数和(自身を含む): 39061120

約数和(自身を除く): 17856588

約数列:

[1, 2, 4, 19, 38, 76, 279007, 558014, 1116028, 5301133, 10602266, 21204532]

約数ペア:

[(1, 21204532), (2, 10602266), (4, 5301133), (19, 1116028), (38, 558014), (76, 279007)]