18992215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{2719}}^1$

素因数の和:2862

約数の個数: 16

約数和(自身を含む): 25067520

約数和(自身を除く): 6075305

約数列:

[1, 5, 11, 55, 127, 635, 1397, 2719, 6985, 13595, 29909, 149545, 345313, 1726565, 3798443, 18992215]

約数ペア:

[(1, 18992215), (5, 3798443), (11, 1726565), (55, 345313), (127, 149545), (635, 29909), (1397, 13595), (2719, 6985)]