17979615

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{8501}}^1$

素因数の和:8559

約数の個数: 24

約数和(自身を含む): 31831488

約数和(自身を除く): 13851873

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 8501, 25503, 42505, 76509, 127515, 382545, 399547, 1198641, 1997735, 3595923, 5993205, 17979615]

約数ペア:

[(1, 17979615), (3, 5993205), (5, 3595923), (9, 1997735), (15, 1198641), (45, 399547), (47, 382545), (141, 127515), (235, 76509), (423, 42505), (705, 25503), (2115, 8501)]