20505196

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{1997}}^1$

素因数の和:2169

約数の個数: 24

約数和(自身を含む): 38265696

約数和(自身を除く): 17760500

約数列:

[1, 2, 4, 17, 34, 68, 151, 302, 604, 1997, 2567, 3994, 5134, 7988, 10268, 33949, 67898, 135796, 301547, 603094, 1206188, 5126299, 10252598, 20505196]

約数ペア:

[(1, 20505196), (2, 10252598), (4, 5126299), (17, 1206188), (34, 603094), (68, 301547), (151, 135796), (302, 67898), (604, 33949), (1997, 10268), (2567, 7988), (3994, 5134)]