20421656

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{134353}}^1$

素因数の和:134378

約数の個数: 16

約数和(自身を含む): 40306200

約数和(自身を除く): 19884544

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 134353, 268706, 537412, 1074824, 2552707, 5105414, 10210828, 20421656]

約数ペア:

[(1, 20421656), (2, 10210828), (4, 5105414), (8, 2552707), (19, 1074824), (38, 537412), (76, 268706), (152, 134353)]