20570407

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 26046720

約数和(自身を除く): 5476313

約数列:

[1, 11, 13, 19, 67, 113, 143, 209, 247, 737, 871, 1243, 1273, 1469, 2147, 2717, 7571, 9581, 14003, 16159, 16549, 23617, 27911, 83281, 98423, 143849, 182039, 307021, 1082653, 1582339, 1870037, 20570407]

約数ペア:

[(1, 20570407), (11, 1870037), (13, 1582339), (19, 1082653), (67, 307021), (113, 182039), (143, 143849), (209, 98423), (247, 83281), (737, 27911), (871, 23617), (1243, 16549), (1273, 16159), (1469, 14003), (2147, 9581), (2717, 7571)]