19980976

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{17107}}^1$

素因数の和:17188

約数の個数: 20

約数和(自身を含む): 39245752

約数和(自身を除く): 19264776

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 17107, 34214, 68428, 136856, 273712, 1248811, 2497622, 4995244, 9990488, 19980976]

約数ペア:

[(1, 19980976), (2, 9990488), (4, 4995244), (8, 2497622), (16, 1248811), (73, 273712), (146, 136856), (292, 68428), (584, 34214), (1168, 17107)]