21148455

素因数分解:

$3^1\times 5^1\times {\mathrm{227}}^1\times {\mathrm{6211}}^1$

素因数の和:6446

約数の個数: 16

約数和(自身を含む): 33992064

約数和(自身を除く): 12843609

約数列:

[1, 3, 5, 15, 227, 681, 1135, 3405, 6211, 18633, 31055, 93165, 1409897, 4229691, 7049485, 21148455]

約数ペア:

[(1, 21148455), (3, 7049485), (5, 4229691), (15, 1409897), (227, 93165), (681, 31055), (1135, 18633), (3405, 6211)]