25128831

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1109}}^1$

素因数の和:1215

約数の個数: 32

約数和(自身を含む): 41771520

約数和(自身を除く): 16642689

約数列:

[1, 3, 7, 13, 21, 39, 83, 91, 249, 273, 581, 1079, 1109, 1743, 3237, 3327, 7553, 7763, 14417, 22659, 23289, 43251, 92047, 100919, 276141, 302757, 644329, 1196611, 1932987, 3589833, 8376277, 25128831]

約数ペア:

[(1, 25128831), (3, 8376277), (7, 3589833), (13, 1932987), (21, 1196611), (39, 644329), (83, 302757), (91, 276141), (249, 100919), (273, 92047), (581, 43251), (1079, 23289), (1109, 22659), (1743, 14417), (3237, 7763), (3327, 7553)]