25118877

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{991}}^1$

素因数の和:1089

約数の個数: 32

約数和(自身を含む): 41140224

約数和(自身を除く): 16021347

約数列:

[1, 3, 7, 17, 21, 51, 71, 119, 213, 357, 497, 991, 1207, 1491, 2973, 3621, 6937, 8449, 16847, 20811, 25347, 50541, 70361, 117929, 211083, 353787, 492527, 1196137, 1477581, 3588411, 8372959, 25118877]

約数ペア:

[(1, 25118877), (3, 8372959), (7, 3588411), (17, 1477581), (21, 1196137), (51, 492527), (71, 353787), (119, 211083), (213, 117929), (357, 70361), (497, 50541), (991, 25347), (1207, 20811), (1491, 16847), (2973, 8449), (3621, 6937)]