20120503

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{503}}^1$

素因数の和:714

約数の個数: 16

約数和(自身を含む): 23115456

約数和(自身を除く): 2994953

約数列:

[1, 13, 17, 181, 221, 503, 2353, 3077, 6539, 8551, 40001, 91043, 111163, 1183559, 1547731, 20120503]

約数ペア:

[(1, 20120503), (13, 1547731), (17, 1183559), (181, 111163), (221, 91043), (503, 40001), (2353, 8551), (3077, 6539)]