19990188

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{9103}}^1$

素因数の和:9174

約数の個数: 36

約数和(自身を含む): 51364768

約数和(自身を除く): 31374580

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 183, 244, 366, 549, 732, 1098, 2196, 9103, 18206, 27309, 36412, 54618, 81927, 109236, 163854, 327708, 555283, 1110566, 1665849, 2221132, 3331698, 4997547, 6663396, 9995094, 19990188]

約数ペア:

[(1, 19990188), (2, 9995094), (3, 6663396), (4, 4997547), (6, 3331698), (9, 2221132), (12, 1665849), (18, 1110566), (36, 555283), (61, 327708), (122, 163854), (183, 109236), (244, 81927), (366, 54618), (549, 36412), (732, 27309), (1098, 18206), (2196, 9103)]