21555161855

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{743}}^1\times {\mathrm{3011}}^1$

素因数の和:3847

約数の個数: 32

約数和(自身を含む): 27106265088

約数和(自身を除く): 5551103233

約数列:

[1, 5, 41, 47, 205, 235, 743, 1927, 3011, 3715, 9635, 15055, 30463, 34921, 123451, 141517, 152315, 174605, 617255, 707585, 1431761, 2237173, 5802197, 7158805, 11185865, 29010985, 91724093, 105147131, 458620465, 525735655, 4311032371, 21555161855]

約数ペア:

[(1, 21555161855), (5, 4311032371), (41, 525735655), (47, 458620465), (205, 105147131), (235, 91724093), (743, 29010985), (1927, 11185865), (3011, 7158805), (3715, 5802197), (9635, 2237173), (15055, 1431761), (30463, 707585), (34921, 617255), (123451, 174605), (141517, 152315)]