21332156980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{289603}}^1$

素因数の和:289768

約数の個数: 48

約数和(自身を含む): 46707333120

約数和(自身を除く): 25375176140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 127, 145, 254, 290, 508, 580, 635, 1270, 2540, 3683, 7366, 14732, 18415, 36830, 73660, 289603, 579206, 1158412, 1448015, 2896030, 5792060, 8398487, 16796974, 33593948, 36779581, 41992435, 73559162, 83984870, 147118324, 167969740, 183897905, 367795810, 735591620, 1066607849, 2133215698, 4266431396, 5333039245, 10666078490, 21332156980]

約数ペア:

[(1, 21332156980), (2, 10666078490), (4, 5333039245), (5, 4266431396), (10, 2133215698), (20, 1066607849), (29, 735591620), (58, 367795810), (116, 183897905), (127, 167969740), (145, 147118324), (254, 83984870), (290, 73559162), (508, 41992435), (580, 36779581), (635, 33593948), (1270, 16796974), (2540, 8398487), (3683, 5792060), (7366, 2896030), (14732, 1448015), (18415, 1158412), (36830, 579206), (73660, 289603)]