19680738

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1039}}^1$

素因数の和:1103

約数の個数: 64

約数和(自身を含む): 50319360

約数和(自身を除く): 30638622

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 41, 42, 66, 77, 82, 123, 154, 231, 246, 287, 451, 462, 574, 861, 902, 1039, 1353, 1722, 2078, 2706, 3117, 3157, 6234, 6314, 7273, 9471, 11429, 14546, 18942, 21819, 22858, 34287, 42599, 43638, 68574, 80003, 85198, 127797, 160006, 240009, 255594, 298193, 468589, 480018, 596386, 894579, 937178, 1405767, 1789158, 2811534, 3280123, 6560246, 9840369, 19680738]

約数ペア:

[(1, 19680738), (2, 9840369), (3, 6560246), (6, 3280123), (7, 2811534), (11, 1789158), (14, 1405767), (21, 937178), (22, 894579), (33, 596386), (41, 480018), (42, 468589), (66, 298193), (77, 255594), (82, 240009), (123, 160006), (154, 127797), (231, 85198), (246, 80003), (287, 68574), (451, 43638), (462, 42599), (574, 34287), (861, 22858), (902, 21819), (1039, 18942), (1353, 14546), (1722, 11429), (2078, 9471), (2706, 7273), (3117, 6314), (3157, 6234)]