17728249

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1061}}^1$

素因数の和:1117

約数の個数: 24

約数和(自身を含む): 23245056

約数和(自身を除く): 5516807

約数列:

[1, 7, 11, 31, 49, 77, 217, 341, 539, 1061, 1519, 2387, 7427, 11671, 16709, 32891, 51989, 81697, 230237, 361801, 571879, 1611659, 2532607, 17728249]

約数ペア:

[(1, 17728249), (7, 2532607), (11, 1611659), (31, 571879), (49, 361801), (77, 230237), (217, 81697), (341, 51989), (539, 32891), (1061, 16709), (1519, 11671), (2387, 7427)]