19115919

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{12421}}^1$

素因数の和:12452

約数の個数: 20

約数和(自身を含む): 30061240

約数和(自身を除く): 10945321

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 12421, 37263, 111789, 235999, 335367, 707997, 1006101, 2123991, 6371973, 19115919]

約数ペア:

[(1, 19115919), (3, 6371973), (9, 2123991), (19, 1006101), (27, 707997), (57, 335367), (81, 235999), (171, 111789), (513, 37263), (1539, 12421)]