221509508

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{647}}^1$

素因数の和:944

約数の個数: 48

約数和(自身を含む): 438939648

約数和(自身を除く): 217430140

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 251, 341, 502, 647, 682, 1004, 1294, 1364, 2588, 2761, 5522, 7117, 7781, 11044, 14234, 15562, 20057, 28468, 31124, 40114, 80228, 85591, 162397, 171182, 220627, 324794, 342364, 441254, 649588, 882508, 1786367, 3572734, 5034307, 7145468, 10068614, 20137228, 55377377, 110754754, 221509508]

約数ペア:

[(1, 221509508), (2, 110754754), (4, 55377377), (11, 20137228), (22, 10068614), (31, 7145468), (44, 5034307), (62, 3572734), (124, 1786367), (251, 882508), (341, 649588), (502, 441254), (647, 342364), (682, 324794), (1004, 220627), (1294, 171182), (1364, 162397), (2588, 85591), (2761, 80228), (5522, 40114), (7117, 31124), (7781, 28468), (11044, 20057), (14234, 15562)]