20055109

素因数分解:

${\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{509}}^1$

素因数の和:612

約数の個数: 12

約数和(自身を含む): 21270060

約数和(自身を除く): 1214951

約数列:

[1, 31, 41, 509, 961, 1271, 15779, 20869, 39401, 489149, 646939, 20055109]

約数ペア:

[(1, 20055109), (31, 646939), (41, 489149), (509, 39401), (961, 20869), (1271, 15779)]