19972615

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2819}}^1$

素因数の和:2946

約数の個数: 16

約数和(自身を含む): 26056800

約数和(自身を除く): 6084185

約数列:

[1, 5, 13, 65, 109, 545, 1417, 2819, 7085, 14095, 36647, 183235, 307271, 1536355, 3994523, 19972615]

約数ペア:

[(1, 19972615), (5, 3994523), (13, 1536355), (65, 307271), (109, 183235), (545, 36647), (1417, 14095), (2819, 7085)]