18939996

素因数分解:

$2^2\times 3^2\times {\mathrm{73}}^1\times {\mathrm{7207}}^1$

素因数の和:7290

約数の個数: 36

約数和(自身を含む): 48538672

約数和(自身を除く): 29598676

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 73, 146, 219, 292, 438, 657, 876, 1314, 2628, 7207, 14414, 21621, 28828, 43242, 64863, 86484, 129726, 259452, 526111, 1052222, 1578333, 2104444, 3156666, 4734999, 6313332, 9469998, 18939996]

約数ペア:

[(1, 18939996), (2, 9469998), (3, 6313332), (4, 4734999), (6, 3156666), (9, 2104444), (12, 1578333), (18, 1052222), (36, 526111), (73, 259452), (146, 129726), (219, 86484), (292, 64863), (438, 43242), (657, 28828), (876, 21621), (1314, 14414), (2628, 7207)]