221408943

素因数分解:

$3^1\times 7^1\times {\mathrm{2551}}^1\times {\mathrm{4133}}^1$

素因数の和:6694

約数の個数: 16

約数和(自身を含む): 337598976

約数和(自身を除く): 116190033

約数列:

[1, 3, 7, 21, 2551, 4133, 7653, 12399, 17857, 28931, 53571, 86793, 10543283, 31629849, 73802981, 221408943]

約数ペア:

[(1, 221408943), (3, 73802981), (7, 31629849), (21, 10543283), (2551, 86793), (4133, 53571), (7653, 28931), (12399, 17857)]