71911881

素因数分解:

$3^4\times {\mathrm{487}}^1\times {\mathrm{1823}}^1$

素因数の和:2322

約数の個数: 20

約数和(自身を含む): 107703552

約数和(自身を除く): 35791671

約数列:

[1, 3, 9, 27, 81, 487, 1461, 1823, 4383, 5469, 13149, 16407, 39447, 49221, 147663, 887801, 2663403, 7990209, 23970627, 71911881]

約数ペア:

[(1, 71911881), (3, 23970627), (9, 7990209), (27, 2663403), (81, 887801), (487, 147663), (1461, 49221), (1823, 39447), (4383, 16407), (5469, 13149)]