18904017

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1087}}^1$

素因数の和:1149

約数の個数: 32

約数和(自身を含む): 30081024

約数和(自身を除く): 11177007

約数列:

[1, 3, 11, 17, 31, 33, 51, 93, 187, 341, 527, 561, 1023, 1087, 1581, 3261, 5797, 11957, 17391, 18479, 33697, 35871, 55437, 101091, 203269, 370667, 572849, 609807, 1112001, 1718547, 6301339, 18904017]

約数ペア:

[(1, 18904017), (3, 6301339), (11, 1718547), (17, 1112001), (31, 609807), (33, 572849), (51, 370667), (93, 203269), (187, 101091), (341, 55437), (527, 35871), (561, 33697), (1023, 18479), (1087, 17391), (1581, 11957), (3261, 5797)]