16990712

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{111781}}^1$

素因数の和:111806

約数の個数: 16

約数和(自身を含む): 33534600

約数和(自身を除く): 16543888

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 111781, 223562, 447124, 894248, 2123839, 4247678, 8495356, 16990712]

約数ペア:

[(1, 16990712), (2, 8495356), (4, 4247678), (8, 2123839), (19, 894248), (38, 447124), (76, 223562), (152, 111781)]