217137978

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{4127}}^1$

素因数の和:4251

約数の個数: 48

約数和(自身を含む): 489415680

約数和(自身を除く): 272277702

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 79, 111, 158, 222, 237, 333, 474, 666, 711, 1422, 2923, 4127, 5846, 8254, 8769, 12381, 17538, 24762, 26307, 37143, 52614, 74286, 152699, 305398, 326033, 458097, 652066, 916194, 978099, 1374291, 1956198, 2748582, 2934297, 5868594, 12063221, 24126442, 36189663, 72379326, 108568989, 217137978]

約数ペア:

[(1, 217137978), (2, 108568989), (3, 72379326), (6, 36189663), (9, 24126442), (18, 12063221), (37, 5868594), (74, 2934297), (79, 2748582), (111, 1956198), (158, 1374291), (222, 978099), (237, 916194), (333, 652066), (474, 458097), (666, 326033), (711, 305398), (1422, 152699), (2923, 74286), (4127, 52614), (5846, 37143), (8254, 26307), (8769, 24762), (12381, 17538)]