20887932

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{521}}^1$

素因数の和:798

約数の個数: 48

約数和(自身を含む): 52792992

約数和(自身を除く): 31905060

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 257, 514, 521, 771, 1028, 1042, 1542, 1563, 2084, 3084, 3126, 3341, 6252, 6682, 6773, 10023, 13364, 13546, 20046, 20319, 27092, 40092, 40638, 81276, 133897, 267794, 401691, 535588, 803382, 1606764, 1740661, 3481322, 5221983, 6962644, 10443966, 20887932]

約数ペア:

[(1, 20887932), (2, 10443966), (3, 6962644), (4, 5221983), (6, 3481322), (12, 1740661), (13, 1606764), (26, 803382), (39, 535588), (52, 401691), (78, 267794), (156, 133897), (257, 81276), (514, 40638), (521, 40092), (771, 27092), (1028, 20319), (1042, 20046), (1542, 13546), (1563, 13364), (2084, 10023), (3084, 6773), (3126, 6682), (3341, 6252)]