16889245

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 22954752

約数和(自身を除く): 6065507

約数列:

[1, 5, 17, 23, 53, 85, 115, 163, 265, 391, 815, 901, 1219, 1955, 2771, 3749, 4505, 6095, 8639, 13855, 18745, 20723, 43195, 63733, 103615, 146863, 198697, 318665, 734315, 993485, 3377849, 16889245]

約数ペア:

[(1, 16889245), (5, 3377849), (17, 993485), (23, 734315), (53, 318665), (85, 198697), (115, 146863), (163, 103615), (265, 63733), (391, 43195), (815, 20723), (901, 18745), (1219, 13855), (1955, 8639), (2771, 6095), (3749, 4505)]