20004718

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1\times {\mathrm{509}}^1$

素因数の和:1011

約数の個数: 16

約数和(自身を含む): 30832560

約数和(自身を除く): 10827842

約数列:

[1, 2, 43, 86, 457, 509, 914, 1018, 19651, 21887, 39302, 43774, 232613, 465226, 10002359, 20004718]

約数ペア:

[(1, 20004718), (2, 10002359), (43, 465226), (86, 232613), (457, 43774), (509, 39302), (914, 21887), (1018, 19651)]