21971312

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4027}}^1$

素因数の和:4077

約数の個数: 40

約数和(自身を含む): 47949312

約数和(自身を除く): 25978000

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 88, 124, 176, 248, 341, 496, 682, 1364, 2728, 4027, 5456, 8054, 16108, 32216, 44297, 64432, 88594, 124837, 177188, 249674, 354376, 499348, 708752, 998696, 1373207, 1997392, 2746414, 5492828, 10985656, 21971312]

約数ペア:

[(1, 21971312), (2, 10985656), (4, 5492828), (8, 2746414), (11, 1997392), (16, 1373207), (22, 998696), (31, 708752), (44, 499348), (62, 354376), (88, 249674), (124, 177188), (176, 124837), (248, 88594), (341, 64432), (496, 44297), (682, 32216), (1364, 16108), (2728, 8054), (4027, 5456)]