161811771

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{613}}^1$

素因数の和:1067

約数の個数: 32

約数和(自身を含む): 248743680

約数和(自身を除く): 86931909

約数列:

[1, 3, 11, 19, 33, 57, 209, 421, 613, 627, 1263, 1839, 4631, 6743, 7999, 11647, 13893, 20229, 23997, 34941, 87989, 128117, 258073, 263967, 384351, 774219, 2838803, 4903387, 8516409, 14710161, 53937257, 161811771]

約数ペア:

[(1, 161811771), (3, 53937257), (11, 14710161), (19, 8516409), (33, 4903387), (57, 2838803), (209, 774219), (421, 384351), (613, 263967), (627, 258073), (1263, 128117), (1839, 87989), (4631, 34941), (6743, 23997), (7999, 20229), (11647, 13893)]