18187975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{293}}^1$

素因数の和:507

約数の個数: 24

約数和(自身を含む): 24498432

約数和(自身を除く): 6310457

約数列:

[1, 5, 13, 25, 65, 191, 293, 325, 955, 1465, 2483, 3809, 4775, 7325, 12415, 19045, 55963, 62075, 95225, 279815, 727519, 1399075, 3637595, 18187975]

約数ペア:

[(1, 18187975), (5, 3637595), (13, 1399075), (25, 727519), (65, 279815), (191, 95225), (293, 62075), (325, 55963), (955, 19045), (1465, 12415), (2483, 7325), (3809, 4775)]