19438565

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 26355456

約数和(自身を除く): 6916891

約数列:

[1, 5, 17, 23, 61, 85, 115, 163, 305, 391, 815, 1037, 1403, 1955, 2771, 3749, 5185, 7015, 9943, 13855, 18745, 23851, 49715, 63733, 119255, 169031, 228689, 318665, 845155, 1143445, 3887713, 19438565]

約数ペア:

[(1, 19438565), (5, 3887713), (17, 1143445), (23, 845155), (61, 318665), (85, 228689), (115, 169031), (163, 119255), (305, 63733), (391, 49715), (815, 23851), (1037, 18745), (1403, 13855), (1955, 9943), (2771, 7015), (3749, 5185)]