21675664

素因数分解:

$2^4\times {\mathrm{271}}^1\times {\mathrm{4999}}^1$

素因数の和:5278

約数の個数: 20

約数和(自身を含む): 42160000

約数和(自身を除く): 20484336

約数列:

[1, 2, 4, 8, 16, 271, 542, 1084, 2168, 4336, 4999, 9998, 19996, 39992, 79984, 1354729, 2709458, 5418916, 10837832, 21675664]

約数ペア:

[(1, 21675664), (2, 10837832), (4, 5418916), (8, 2709458), (16, 1354729), (271, 79984), (542, 39992), (1084, 19996), (2168, 9998), (4336, 4999)]