20642522

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{269}}^1$

素因数の和:386

約数の個数: 32

約数和(自身を含む): 34350480

約数和(自身を除く): 13707958

約数列:

[1, 2, 17, 34, 37, 61, 74, 122, 269, 538, 629, 1037, 1258, 2074, 2257, 4514, 4573, 9146, 9953, 16409, 19906, 32818, 38369, 76738, 169201, 278953, 338402, 557906, 607133, 1214266, 10321261, 20642522]

約数ペア:

[(1, 20642522), (2, 10321261), (17, 1214266), (34, 607133), (37, 557906), (61, 338402), (74, 278953), (122, 169201), (269, 76738), (538, 38369), (629, 32818), (1037, 19906), (1258, 16409), (2074, 9953), (2257, 9146), (4514, 4573)]