20512019916

素因数分解:

$2^2\times 3^2\times {\mathrm{2341}}^1\times {\mathrm{243391}}^1$

素因数の和:245742

約数の個数: 36

約数和(自身を含む): 51872189824

約数和(自身を除く): 31360169908

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 2341, 4682, 7023, 9364, 14046, 21069, 28092, 42138, 84276, 243391, 486782, 730173, 973564, 1460346, 2190519, 2920692, 4381038, 8762076, 569778331, 1139556662, 1709334993, 2279113324, 3418669986, 5128004979, 6837339972, 10256009958, 20512019916]

約数ペア:

[(1, 20512019916), (2, 10256009958), (3, 6837339972), (4, 5128004979), (6, 3418669986), (9, 2279113324), (12, 1709334993), (18, 1139556662), (36, 569778331), (2341, 8762076), (4682, 4381038), (7023, 2920692), (9364, 2190519), (14046, 1460346), (21069, 973564), (28092, 730173), (42138, 486782), (84276, 243391)]