19818387

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{5039}}^1$

素因数の和:5087

約数の個数: 24

約数和(自身を含む): 31449600

約数和(自身を除く): 11631213

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 1311, 3933, 5039, 15117, 45351, 95741, 115897, 287223, 347691, 861669, 1043073, 2202043, 6606129, 19818387]

約数ペア:

[(1, 19818387), (3, 6606129), (9, 2202043), (19, 1043073), (23, 861669), (57, 347691), (69, 287223), (171, 115897), (207, 95741), (437, 45351), (1311, 15117), (3933, 5039)]