20541325

素因数分解:

$5^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1097}}^1$

素因数の和:1221

約数の個数: 24

約数和(自身を含む): 29408832

約数和(自身を除く): 8867507

約数列:

[1, 5, 7, 25, 35, 107, 175, 535, 749, 1097, 2675, 3745, 5485, 7679, 18725, 27425, 38395, 117379, 191975, 586895, 821653, 2934475, 4108265, 20541325]

約数ペア:

[(1, 20541325), (5, 4108265), (7, 2934475), (25, 821653), (35, 586895), (107, 191975), (175, 117379), (535, 38395), (749, 27425), (1097, 18725), (2675, 7679), (3745, 5485)]