21000736490

素因数分解:

$2^1\times 5^1\times {\mathrm{3373}}^1\times {\mathrm{622613}}^1$

素因数の和:625993

約数の個数: 16

約数和(自身を含む): 37812593448

約数和(自身を除く): 16811856958

約数列:

[1, 2, 5, 10, 3373, 6746, 16865, 33730, 622613, 1245226, 3113065, 6226130, 2100073649, 4200147298, 10500368245, 21000736490]

約数ペア:

[(1, 21000736490), (2, 10500368245), (5, 4200147298), (10, 2100073649), (3373, 6226130), (6746, 3113065), (16865, 1245226), (33730, 622613)]