28181494

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:528

約数の個数: 32

約数和(自身を含む): 48016800

約数和(自身を除く): 19835306

約数列:

[1, 2, 11, 22, 37, 74, 89, 178, 389, 407, 778, 814, 979, 1958, 3293, 4279, 6586, 8558, 14393, 28786, 34621, 36223, 69242, 72446, 158323, 316646, 380831, 761662, 1280977, 2561954, 14090747, 28181494]

約数ペア:

[(1, 28181494), (2, 14090747), (11, 2561954), (22, 1280977), (37, 761662), (74, 380831), (89, 316646), (178, 158323), (389, 72446), (407, 69242), (778, 36223), (814, 34621), (979, 28786), (1958, 14393), (3293, 8558), (4279, 6586)]