20996869676

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{66047}}^1$

素因数の和:66206

約数の個数: 48

約数和(自身を含む): 39945830400

約数和(自身を除く): 18948960724

約数列:

[1, 2, 4, 19, 38, 47, 76, 89, 94, 178, 188, 356, 893, 1691, 1786, 3382, 3572, 4183, 6764, 8366, 16732, 66047, 79477, 132094, 158954, 264188, 317908, 1254893, 2509786, 3104209, 5019572, 5878183, 6208418, 11756366, 12416836, 23512732, 58979971, 111685477, 117959942, 223370954, 235919884, 276274601, 446741908, 552549202, 1105098404, 5249217419, 10498434838, 20996869676]

約数ペア:

[(1, 20996869676), (2, 10498434838), (4, 5249217419), (19, 1105098404), (38, 552549202), (47, 446741908), (76, 276274601), (89, 235919884), (94, 223370954), (178, 117959942), (188, 111685477), (356, 58979971), (893, 23512732), (1691, 12416836), (1786, 11756366), (3382, 6208418), (3572, 5878183), (4183, 5019572), (6764, 3104209), (8366, 2509786), (16732, 1254893), (66047, 317908), (79477, 264188), (132094, 158954)]