21771869

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{271}}^1\times {\mathrm{499}}^1$

素因数の和:800

約数の個数: 16

約数和(自身を含む): 26112000

約数和(自身を除く): 4340131

約数列:

[1, 7, 23, 161, 271, 499, 1897, 3493, 6233, 11477, 43631, 80339, 135229, 946603, 3110267, 21771869]

約数ペア:

[(1, 21771869), (7, 3110267), (23, 946603), (161, 135229), (271, 80339), (499, 43631), (1897, 11477), (3493, 6233)]