20951567

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1061}}^1$

素因数の和:1119

約数の個数: 24

約数和(自身を含む): 27119232

約数和(自身を除く): 6167665

約数列:

[1, 7, 13, 31, 49, 91, 217, 403, 637, 1061, 1519, 2821, 7427, 13793, 19747, 32891, 51989, 96551, 230237, 427583, 675857, 1611659, 2993081, 20951567]

約数ペア:

[(1, 20951567), (7, 2993081), (13, 1611659), (31, 675857), (49, 427583), (91, 230237), (217, 96551), (403, 51989), (637, 32891), (1061, 19747), (1519, 13793), (2821, 7427)]