19795139

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{577}}^1$

素因数の和:639

約数の個数: 24

約数和(自身を含む): 25385760

約数和(自身を除く): 5590621

約数列:

[1, 7, 13, 29, 91, 169, 203, 377, 577, 1183, 2639, 4039, 4901, 7501, 16733, 34307, 52507, 97513, 117131, 217529, 682591, 1522703, 2827877, 19795139]

約数ペア:

[(1, 19795139), (7, 2827877), (13, 1522703), (29, 682591), (91, 217529), (169, 117131), (203, 97513), (377, 52507), (577, 34307), (1183, 16733), (2639, 7501), (4039, 4901)]