20123803539

素因数分解:

$3^4\times 7^1\times {\mathrm{197}}^1\times {\mathrm{180161}}^1$

素因数の和:180377

約数の個数: 40

約数和(自身を含む): 34530569568

約数和(自身を除く): 14406766029

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 197, 567, 591, 1379, 1773, 4137, 5319, 12411, 15957, 37233, 111699, 180161, 540483, 1261127, 1621449, 3783381, 4864347, 11350143, 14593041, 34050429, 35491717, 102151287, 106475151, 248442019, 319425453, 745326057, 958276359, 2235978171, 2874829077, 6707934513, 20123803539]

約数ペア:

[(1, 20123803539), (3, 6707934513), (7, 2874829077), (9, 2235978171), (21, 958276359), (27, 745326057), (63, 319425453), (81, 248442019), (189, 106475151), (197, 102151287), (567, 35491717), (591, 34050429), (1379, 14593041), (1773, 11350143), (4137, 4864347), (5319, 3783381), (12411, 1621449), (15957, 1261127), (37233, 540483), (111699, 180161)]