18897995

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^2\times {\mathrm{59}}^1$

素因数の和:187

約数の個数: 24

約数和(自身を含む): 24375600

約数和(自身を除く): 5477605

約数列:

[1, 5, 29, 47, 59, 145, 235, 295, 1363, 1711, 2209, 2773, 6815, 8555, 11045, 13865, 64061, 80417, 130331, 320305, 402085, 651655, 3779599, 18897995]

約数ペア:

[(1, 18897995), (5, 3779599), (29, 651655), (47, 402085), (59, 320305), (145, 130331), (235, 80417), (295, 64061), (1363, 13865), (1711, 11045), (2209, 8555), (2773, 6815)]