21026989081

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{773}}^1\times {\mathrm{133999}}^1$

素因数の和:134808

約数の個数: 16

約数和(自身を含む): 24891840000

約数和(自身を除く): 3864850919

約数列:

[1, 7, 29, 203, 773, 5411, 22417, 133999, 156919, 937993, 3885971, 27201797, 103581227, 725068589, 3003855583, 21026989081]

約数ペア:

[(1, 21026989081), (7, 3003855583), (29, 725068589), (203, 103581227), (773, 27201797), (5411, 3885971), (22417, 937993), (133999, 156919)]