20217946

素因数分解:

$2^1\times 7^1\times {\mathrm{821}}^1\times {\mathrm{1759}}^1$

素因数の和:2589

約数の個数: 16

約数和(自身を含む): 34721280

約数和(自身を除く): 14503334

約数列:

[1, 2, 7, 14, 821, 1642, 1759, 3518, 5747, 11494, 12313, 24626, 1444139, 2888278, 10108973, 20217946]

約数ペア:

[(1, 20217946), (2, 10108973), (7, 2888278), (14, 1444139), (821, 24626), (1642, 12313), (1759, 11494), (3518, 5747)]