25928217

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21661}}^1$

素因数の和:21693

約数の個数: 24

約数和(自身を含む): 45056960

約数和(自身を除く): 19128743

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 21661, 64983, 151627, 194949, 411559, 454881, 1234677, 1364643, 2880913, 3704031, 8642739, 25928217]

約数ペア:

[(1, 25928217), (3, 8642739), (7, 3704031), (9, 2880913), (19, 1364643), (21, 1234677), (57, 454881), (63, 411559), (133, 194949), (171, 151627), (399, 64983), (1197, 21661)]