18291915

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23911}}^1$

素因数の和:23939

約数の個数: 24

約数和(自身を含む): 33572448

約数和(自身を除く): 15280533

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 23911, 71733, 119555, 215199, 358665, 406487, 1075995, 1219461, 2032435, 3658383, 6097305, 18291915]

約数ペア:

[(1, 18291915), (3, 6097305), (5, 3658383), (9, 2032435), (15, 1219461), (17, 1075995), (45, 406487), (51, 358665), (85, 215199), (153, 119555), (255, 71733), (765, 23911)]