20493153

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 33196800

約数和(自身を除く): 12703647

約数列:

[1, 3, 9, 19, 37, 41, 57, 79, 111, 123, 171, 237, 333, 369, 703, 711, 779, 1501, 1517, 2109, 2337, 2923, 3239, 4503, 4551, 6327, 7011, 8769, 9717, 13509, 13653, 26307, 28823, 29151, 55537, 61541, 86469, 119843, 166611, 184623, 259407, 359529, 499833, 553869, 1078587, 2277017, 6831051, 20493153]

約数ペア:

[(1, 20493153), (3, 6831051), (9, 2277017), (19, 1078587), (37, 553869), (41, 499833), (57, 359529), (79, 259407), (111, 184623), (123, 166611), (171, 119843), (237, 86469), (333, 61541), (369, 55537), (703, 29151), (711, 28823), (779, 26307), (1501, 13653), (1517, 13509), (2109, 9717), (2337, 8769), (2923, 7011), (3239, 6327), (4503, 4551)]