19125865

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{313}}^1$

素因数の和:441

約数の個数: 24

約数和(自身を含む): 25558344

約数和(自身を除く): 6432479

約数列:

[1, 5, 11, 55, 101, 121, 313, 505, 605, 1111, 1565, 3443, 5555, 12221, 17215, 31613, 37873, 61105, 158065, 189365, 347743, 1738715, 3825173, 19125865]

約数ペア:

[(1, 19125865), (5, 3825173), (11, 1738715), (55, 347743), (101, 189365), (121, 158065), (313, 61105), (505, 37873), (605, 31613), (1111, 17215), (1565, 12221), (3443, 5555)]