19471821

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{809}}^1$

素因数の和:996

約数の個数: 16

約数和(自身を含む): 26593920

約数和(自身を除く): 7122099

約数列:

[1, 3, 71, 113, 213, 339, 809, 2427, 8023, 24069, 57439, 91417, 172317, 274251, 6490607, 19471821]

約数ペア:

[(1, 19471821), (3, 6490607), (71, 274251), (113, 172317), (213, 91417), (339, 57439), (809, 24069), (2427, 8023)]