21012474858

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{81443701}}^1$

素因数の和:81443749

約数の個数: 16

約数和(自身を含む): 43002274656

約数和(自身を除く): 21989799798

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 81443701, 162887402, 244331103, 488662206, 3502079143, 7004158286, 10506237429, 21012474858]

約数ペア:

[(1, 21012474858), (2, 10506237429), (3, 7004158286), (6, 3502079143), (43, 488662206), (86, 244331103), (129, 162887402), (258, 81443701)]