20921963908

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{37567}}^1$

素因数の和:37732

約数の個数: 48

約数和(自身を含む): 38853126144

約数和(自身を除く): 17931162236

約数列:

[1, 2, 4, 37, 53, 71, 74, 106, 142, 148, 212, 284, 1961, 2627, 3763, 3922, 5254, 7526, 7844, 10508, 15052, 37567, 75134, 139231, 150268, 278462, 556924, 1389979, 1991051, 2667257, 2779958, 3982102, 5334514, 5559916, 7964204, 10669028, 73668887, 98688509, 141364621, 147337774, 197377018, 282729242, 294675548, 394754036, 565458484, 5230490977, 10460981954, 20921963908]

約数ペア:

[(1, 20921963908), (2, 10460981954), (4, 5230490977), (37, 565458484), (53, 394754036), (71, 294675548), (74, 282729242), (106, 197377018), (142, 147337774), (148, 141364621), (212, 98688509), (284, 73668887), (1961, 10669028), (2627, 7964204), (3763, 5559916), (3922, 5334514), (5254, 3982102), (7526, 2779958), (7844, 2667257), (10508, 1991051), (15052, 1389979), (37567, 556924), (75134, 278462), (139231, 150268)]