1321605

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{683}}^1$

素因数の和:737

約数の個数: 24

約数和(自身を含む): 2347488

約数和(自身を除く): 1025883

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 683, 1935, 2049, 3415, 6147, 10245, 29369, 30735, 88107, 146845, 264321, 440535, 1321605]

約数ペア:

[(1, 1321605), (3, 440535), (5, 264321), (9, 146845), (15, 88107), (43, 30735), (45, 29369), (129, 10245), (215, 6147), (387, 3415), (645, 2049), (683, 1935)]