19900311

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{1021}}^1$

素因数の和:1186

約数の個数: 16

約数和(自身を含む): 27226080

約数和(自身を除く): 7325769

約数列:

[1, 3, 73, 89, 219, 267, 1021, 3063, 6497, 19491, 74533, 90869, 223599, 272607, 6633437, 19900311]

約数ペア:

[(1, 19900311), (3, 6633437), (73, 272607), (89, 223599), (219, 90869), (267, 74533), (1021, 19491), (3063, 6497)]