18891125

素因数分解:

$5^3\times {\mathrm{11}}^2\times {\mathrm{1249}}^1$

素因数の和:1286

約数の個数: 24

約数和(自身を含む): 25935000

約数和(自身を除く): 7043875

約数列:

[1, 5, 11, 25, 55, 121, 125, 275, 605, 1249, 1375, 3025, 6245, 13739, 15125, 31225, 68695, 151129, 156125, 343475, 755645, 1717375, 3778225, 18891125]

約数ペア:

[(1, 18891125), (5, 3778225), (11, 1717375), (25, 755645), (55, 343475), (121, 156125), (125, 151129), (275, 68695), (605, 31225), (1249, 15125), (1375, 13739), (3025, 6245)]