1900205853

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{1987}}^1$

素因数の和:2154

約数の個数: 64

約数和(自身を含む): 3248996352

約数和(自身を除く): 1348790499

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 113, 217, 273, 339, 403, 651, 791, 1209, 1469, 1987, 2373, 2821, 3503, 4407, 5961, 8463, 10283, 10509, 13909, 24521, 25831, 30849, 41727, 45539, 61597, 73563, 77493, 136617, 180817, 184791, 224531, 318773, 431179, 542451, 673593, 800761, 956319, 1293537, 1571717, 2402283, 2918903, 4715151, 5605327, 6960461, 8756709, 16815981, 20432321, 20881383, 48723227, 61296963, 90485993, 146169681, 271457979, 633401951, 1900205853]

約数ペア:

[(1, 1900205853), (3, 633401951), (7, 271457979), (13, 146169681), (21, 90485993), (31, 61296963), (39, 48723227), (91, 20881383), (93, 20432321), (113, 16815981), (217, 8756709), (273, 6960461), (339, 5605327), (403, 4715151), (651, 2918903), (791, 2402283), (1209, 1571717), (1469, 1293537), (1987, 956319), (2373, 800761), (2821, 673593), (3503, 542451), (4407, 431179), (5961, 318773), (8463, 224531), (10283, 184791), (10509, 180817), (13909, 136617), (24521, 77493), (25831, 73563), (30849, 61597), (41727, 45539)]