21889689

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{4441}}^1$

素因数の和:4528

約数の個数: 16

約数和(自身を含む): 30703104

約数和(自身を除く): 8813415

約数列:

[1, 3, 31, 53, 93, 159, 1643, 4441, 4929, 13323, 137671, 235373, 413013, 706119, 7296563, 21889689]

約数ペア:

[(1, 21889689), (3, 7296563), (31, 706119), (53, 413013), (93, 235373), (159, 137671), (1643, 13323), (4441, 4929)]