20191905

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9547}}^1$

素因数の和:9605

約数の個数: 24

約数和(自身を含む): 35747712

約数和(自身を除く): 15555807

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 9547, 28641, 47735, 85923, 143205, 429615, 448709, 1346127, 2243545, 4038381, 6730635, 20191905]

約数ペア:

[(1, 20191905), (3, 6730635), (5, 4038381), (9, 2243545), (15, 1346127), (45, 448709), (47, 429615), (141, 143205), (235, 85923), (423, 47735), (705, 28641), (2115, 9547)]