20121247909

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{4229}}^1\times {\mathrm{9311}}^1$

素因数の和:13620

約数の個数: 16

約数和(自身を含む): 23318737920

約数和(自身を除く): 3197490011

約数列:

[1, 7, 73, 511, 4229, 9311, 29603, 65177, 308717, 679703, 2161019, 4757921, 39376219, 275633533, 2874463987, 20121247909]

約数ペア:

[(1, 20121247909), (7, 2874463987), (73, 275633533), (511, 39376219), (4229, 4757921), (9311, 2161019), (29603, 679703), (65177, 308717)]