21066130

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{48991}}^1$

素因数の和:49041

約数の個数: 16

約数和(自身を含む): 38801664

約数和(自身を除く): 17735534

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 48991, 97982, 244955, 489910, 2106613, 4213226, 10533065, 21066130]

約数ペア:

[(1, 21066130), (2, 10533065), (5, 4213226), (10, 2106613), (43, 489910), (86, 244955), (215, 97982), (430, 48991)]