20733488

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{547}}^1$

素因数の和:681

約数の個数: 40

約数和(自身を含む): 42402048

約数和(自身を除く): 21668560

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 103, 184, 206, 368, 412, 547, 824, 1094, 1648, 2188, 2369, 4376, 4738, 8752, 9476, 12581, 18952, 25162, 37904, 50324, 56341, 100648, 112682, 201296, 225364, 450728, 901456, 1295843, 2591686, 5183372, 10366744, 20733488]

約数ペア:

[(1, 20733488), (2, 10366744), (4, 5183372), (8, 2591686), (16, 1295843), (23, 901456), (46, 450728), (92, 225364), (103, 201296), (184, 112682), (206, 100648), (368, 56341), (412, 50324), (547, 37904), (824, 25162), (1094, 18952), (1648, 12581), (2188, 9476), (2369, 8752), (4376, 4738)]