172912131

素因数分解:

$3^3\times 7^3\times {\mathrm{18671}}^1$

素因数の和:18701

約数の個数: 32

約数和(自身を含む): 298752000

約数和(自身を除く): 125839869

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 343, 441, 1029, 1323, 3087, 9261, 18671, 56013, 130697, 168039, 392091, 504117, 914879, 1176273, 2744637, 3528819, 6404153, 8233911, 19212459, 24701733, 57637377, 172912131]

約数ペア:

[(1, 172912131), (3, 57637377), (7, 24701733), (9, 19212459), (21, 8233911), (27, 6404153), (49, 3528819), (63, 2744637), (147, 1176273), (189, 914879), (343, 504117), (441, 392091), (1029, 168039), (1323, 130697), (3087, 56013), (9261, 18671)]