19904229

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 33022080

約数和(自身を除く): 13117851

約数列:

[1, 3, 9, 17, 19, 41, 51, 57, 123, 153, 167, 171, 323, 369, 501, 697, 779, 969, 1503, 2091, 2337, 2839, 2907, 3173, 6273, 6847, 7011, 8517, 9519, 13243, 20541, 25551, 28557, 39729, 53941, 61623, 116399, 119187, 130093, 161823, 349197, 390279, 485469, 1047591, 1170837, 2211581, 6634743, 19904229]

約数ペア:

[(1, 19904229), (3, 6634743), (9, 2211581), (17, 1170837), (19, 1047591), (41, 485469), (51, 390279), (57, 349197), (123, 161823), (153, 130093), (167, 119187), (171, 116399), (323, 61623), (369, 53941), (501, 39729), (697, 28557), (779, 25551), (969, 20541), (1503, 13243), (2091, 9519), (2337, 8517), (2839, 7011), (2907, 6847), (3173, 6273)]