19601901

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{613}}^1$

素因数の和:666

約数の個数: 48

約数和(自身を含む): 34482240

約数和(自身を除く): 14880339

約数列:

[1, 3, 9, 11, 17, 19, 33, 51, 57, 99, 153, 171, 187, 209, 323, 561, 613, 627, 969, 1683, 1839, 1881, 2907, 3553, 5517, 6743, 10421, 10659, 11647, 20229, 31263, 31977, 34941, 60687, 93789, 104823, 114631, 128117, 197999, 343893, 384351, 593997, 1031679, 1153053, 1781991, 2177989, 6533967, 19601901]

約数ペア:

[(1, 19601901), (3, 6533967), (9, 2177989), (11, 1781991), (17, 1153053), (19, 1031679), (33, 593997), (51, 384351), (57, 343893), (99, 197999), (153, 128117), (171, 114631), (187, 104823), (209, 93789), (323, 60687), (561, 34941), (613, 31977), (627, 31263), (969, 20229), (1683, 11647), (1839, 10659), (1881, 10421), (2907, 6743), (3553, 5517)]