19815672716

素因数分解:

$2^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{751}}^1\times {\mathrm{1307}}^1$

素因数の和:2179

約数の個数: 72

約数和(自身を含む): 40816129536

約数和(自身を除く): 21000456820

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 103, 196, 206, 412, 721, 751, 1307, 1442, 1502, 2614, 2884, 3004, 5047, 5228, 5257, 9149, 10094, 10514, 18298, 20188, 21028, 36596, 36799, 64043, 73598, 77353, 128086, 134621, 147196, 154706, 256172, 269242, 309412, 538484, 541471, 942347, 981557, 1082942, 1884694, 1963114, 2165884, 3769388, 3790297, 3926228, 6596429, 6870899, 7580594, 13192858, 13741798, 15161188, 26385716, 27483596, 48096293, 96192586, 101100371, 192385172, 202200742, 404401484, 707702597, 1415405194, 2830810388, 4953918179, 9907836358, 19815672716]

約数ペア:

[(1, 19815672716), (2, 9907836358), (4, 4953918179), (7, 2830810388), (14, 1415405194), (28, 707702597), (49, 404401484), (98, 202200742), (103, 192385172), (196, 101100371), (206, 96192586), (412, 48096293), (721, 27483596), (751, 26385716), (1307, 15161188), (1442, 13741798), (1502, 13192858), (2614, 7580594), (2884, 6870899), (3004, 6596429), (5047, 3926228), (5228, 3790297), (5257, 3769388), (9149, 2165884), (10094, 1963114), (10514, 1884694), (18298, 1082942), (20188, 981557), (21028, 942347), (36596, 541471), (36799, 538484), (64043, 309412), (73598, 269242), (77353, 256172), (128086, 154706), (134621, 147196)]