18833391

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:213

約数の個数: 40

約数和(自身を含む): 29638224

約数和(自身を除く): 10804833

約数列:

[1, 3, 9, 27, 41, 53, 81, 107, 123, 159, 321, 369, 477, 963, 1107, 1431, 2173, 2889, 3321, 4293, 4387, 5671, 6519, 8667, 13161, 17013, 19557, 39483, 51039, 58671, 118449, 153117, 176013, 232511, 355347, 459351, 697533, 2092599, 6277797, 18833391]

約数ペア:

[(1, 18833391), (3, 6277797), (9, 2092599), (27, 697533), (41, 459351), (53, 355347), (81, 232511), (107, 176013), (123, 153117), (159, 118449), (321, 58671), (369, 51039), (477, 39483), (963, 19557), (1107, 17013), (1431, 13161), (2173, 8667), (2889, 6519), (3321, 5671), (4293, 4387)]