19838091721

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{20959}}^1\times {\mathrm{5879}}^1$

素因数の和:26868

約数の個数: 16

約数和(自身を含む): 23663001600

約数和(自身を除く): 3824909879

約数列:

[1, 7, 23, 161, 5879, 20959, 41153, 135217, 146713, 482057, 946519, 3374399, 123217961, 862525727, 2834013103, 19838091721]

約数ペア:

[(1, 19838091721), (7, 2834013103), (23, 862525727), (161, 123217961), (5879, 3374399), (20959, 946519), (41153, 482057), (135217, 146713)]