18155421

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:231

約数の個数: 40

約数和(自身を含む): 28749600

約数和(自身を除く): 10594179

約数列:

[1, 3, 9, 27, 29, 59, 81, 87, 131, 177, 261, 393, 531, 783, 1179, 1593, 1711, 2349, 3537, 3799, 4779, 5133, 7729, 10611, 11397, 15399, 23187, 34191, 46197, 69561, 102573, 138591, 208683, 224141, 307719, 626049, 672423, 2017269, 6051807, 18155421]

約数ペア:

[(1, 18155421), (3, 6051807), (9, 2017269), (27, 672423), (29, 626049), (59, 307719), (81, 224141), (87, 208683), (131, 138591), (177, 102573), (261, 69561), (393, 46197), (531, 34191), (783, 23187), (1179, 15399), (1593, 11397), (1711, 10611), (2349, 7729), (3537, 5133), (3799, 4779)]