1991691970

素因数分解:

$2^1\times 5^1\times {\mathrm{911}}^1\times {\mathrm{218627}}^1$

素因数の和:219545

約数の個数: 16

約数和(自身を含む): 3588997248

約数和(自身を除く): 1597305278

約数列:

[1, 2, 5, 10, 911, 1822, 4555, 9110, 218627, 437254, 1093135, 2186270, 199169197, 398338394, 995845985, 1991691970]

約数ペア:

[(1, 1991691970), (2, 995845985), (5, 398338394), (10, 199169197), (911, 2186270), (1822, 1093135), (4555, 437254), (9110, 218627)]