21170247

素因数分解:

$3^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{4441}}^1$

素因数の和:4678

約数の個数: 16

約数和(自身を含む): 32408832

約数和(自身を除く): 11238585

約数列:

[1, 3, 7, 21, 227, 681, 1589, 4441, 4767, 13323, 31087, 93261, 1008107, 3024321, 7056749, 21170247]

約数ペア:

[(1, 21170247), (3, 7056749), (7, 3024321), (21, 1008107), (227, 93261), (681, 31087), (1589, 13323), (4441, 4767)]