20553498

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1039}}^1$

素因数の和:1211

約数の個数: 48

約数和(自身を含む): 51267840

約数和(自身を除く): 30714342

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 157, 314, 471, 942, 1039, 1099, 1413, 2078, 2198, 2826, 3117, 3297, 6234, 6594, 7273, 9351, 9891, 14546, 18702, 19782, 21819, 43638, 65457, 130914, 163123, 326246, 489369, 978738, 1141861, 1468107, 2283722, 2936214, 3425583, 6851166, 10276749, 20553498]

約数ペア:

[(1, 20553498), (2, 10276749), (3, 6851166), (6, 3425583), (7, 2936214), (9, 2283722), (14, 1468107), (18, 1141861), (21, 978738), (42, 489369), (63, 326246), (126, 163123), (157, 130914), (314, 65457), (471, 43638), (942, 21819), (1039, 19782), (1099, 18702), (1413, 14546), (2078, 9891), (2198, 9351), (2826, 7273), (3117, 6594), (3297, 6234)]