21203966771

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{1321}}^1$

素因数の和:1552

約数の個数: 48

約数和(自身を含む): 25152562368

約数和(自身を除く): 3948595597

約数列:

[1, 13, 17, 37, 151, 169, 221, 481, 629, 1321, 1963, 2567, 2873, 5587, 6253, 8177, 17173, 22457, 25519, 33371, 48877, 72631, 94979, 106301, 199471, 223249, 291941, 433823, 635401, 830909, 944203, 1234727, 2593123, 3391007, 3795233, 7380427, 8260213, 10801817, 16051451, 33710599, 44083091, 95945551, 125467259, 140423621, 573080183, 1247292163, 1631074367, 21203966771]

約数ペア:

[(1, 21203966771), (13, 1631074367), (17, 1247292163), (37, 573080183), (151, 140423621), (169, 125467259), (221, 95945551), (481, 44083091), (629, 33710599), (1321, 16051451), (1963, 10801817), (2567, 8260213), (2873, 7380427), (5587, 3795233), (6253, 3391007), (8177, 2593123), (17173, 1234727), (22457, 944203), (25519, 830909), (33371, 635401), (48877, 433823), (72631, 291941), (94979, 223249), (106301, 199471)]