51780399

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{887}}^1$

素因数の和:991

約数の個数: 32

約数和(自身を含む): 79280640

約数和(自身を除く): 27500241

約数列:

[1, 3, 11, 29, 33, 61, 87, 183, 319, 671, 887, 957, 1769, 2013, 2661, 5307, 9757, 19459, 25723, 29271, 54107, 58377, 77169, 162321, 282953, 595177, 848859, 1569103, 1785531, 4707309, 17260133, 51780399]

約数ペア:

[(1, 51780399), (3, 17260133), (11, 4707309), (29, 1785531), (33, 1569103), (61, 848859), (87, 595177), (183, 282953), (319, 162321), (671, 77169), (887, 58377), (957, 54107), (1769, 29271), (2013, 25723), (2661, 19459), (5307, 9757)]