20992708

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{7121}}^1$

素因数の和:7203

約数の個数: 24

約数和(自身を含む): 40680864

約数和(自身を除く): 19688156

約数列:

[1, 2, 4, 11, 22, 44, 67, 134, 268, 737, 1474, 2948, 7121, 14242, 28484, 78331, 156662, 313324, 477107, 954214, 1908428, 5248177, 10496354, 20992708]

約数ペア:

[(1, 20992708), (2, 10496354), (4, 5248177), (11, 1908428), (22, 954214), (44, 477107), (67, 313324), (134, 156662), (268, 78331), (737, 28484), (1474, 14242), (2948, 7121)]