18289328

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{10487}}^1$

素因数の和:10604

約数の個数: 20

約数和(自身を含む): 35764080

約数和(自身を除く): 17474752

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 10487, 20974, 41948, 83896, 167792, 1143083, 2286166, 4572332, 9144664, 18289328]

約数ペア:

[(1, 18289328), (2, 9144664), (4, 4572332), (8, 2286166), (16, 1143083), (109, 167792), (218, 83896), (436, 41948), (872, 20974), (1744, 10487)]