21919472

素因数分解:

$2^4\times {\mathrm{263}}^1\times {\mathrm{5209}}^1$

素因数の和:5480

約数の個数: 20

約数和(自身を含む): 42638640

約数和(自身を除く): 20719168

約数列:

[1, 2, 4, 8, 16, 263, 526, 1052, 2104, 4208, 5209, 10418, 20836, 41672, 83344, 1369967, 2739934, 5479868, 10959736, 21919472]

約数ペア:

[(1, 21919472), (2, 10959736), (4, 5479868), (8, 2739934), (16, 1369967), (263, 83344), (526, 41672), (1052, 20836), (2104, 10418), (4208, 5209)]