20201993763

素因数分解:

$3^1\times 7^3\times {\mathrm{19632647}}^1$

素因数の和:19632671

約数の個数: 16

約数和(自身を含む): 31412236800

約数和(自身を除く): 11210243037

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 19632647, 58897941, 137428529, 412285587, 961999703, 2885999109, 6733997921, 20201993763]

約数ペア:

[(1, 20201993763), (3, 6733997921), (7, 2885999109), (21, 961999703), (49, 412285587), (147, 137428529), (343, 58897941), (1029, 19632647)]