19684225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2309}}^1$

素因数の和:2361

約数の個数: 24

約数和(自身を含む): 27498240

約数和(自身を除く): 7814015

約数列:

[1, 5, 11, 25, 31, 55, 155, 275, 341, 775, 1705, 2309, 8525, 11545, 25399, 57725, 71579, 126995, 357895, 634975, 787369, 1789475, 3936845, 19684225]

約数ペア:

[(1, 19684225), (5, 3936845), (11, 1789475), (25, 787369), (31, 634975), (55, 357895), (155, 126995), (275, 71579), (341, 57725), (775, 25399), (1705, 11545), (2309, 8525)]