19636925

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^2$

素因数の和:230

約数の個数: 36

約数和(自身を含む): 30661728

約数和(自身を除く): 11024803

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 101, 175, 275, 385, 505, 707, 1111, 1925, 2525, 3535, 5555, 7777, 10201, 17675, 27775, 38885, 51005, 71407, 112211, 194425, 255025, 357035, 561055, 785477, 1785175, 2805275, 3927385, 19636925]

約数ペア:

[(1, 19636925), (5, 3927385), (7, 2805275), (11, 1785175), (25, 785477), (35, 561055), (55, 357035), (77, 255025), (101, 194425), (175, 112211), (275, 71407), (385, 51005), (505, 38885), (707, 27775), (1111, 17675), (1925, 10201), (2525, 7777), (3535, 5555)]