20794865

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6529}}^1$

素因数の和:6561

約数の個数: 24

約数和(自身を含む): 31265640

約数和(自身を除く): 10470775

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 6529, 32645, 45703, 84877, 228515, 319921, 424385, 594139, 1599605, 2970695, 4158973, 20794865]

約数ペア:

[(1, 20794865), (5, 4158973), (7, 2970695), (13, 1599605), (35, 594139), (49, 424385), (65, 319921), (91, 228515), (245, 84877), (455, 45703), (637, 32645), (3185, 6529)]