18945816

素因数分解:

$2^3\times 3^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{167}}^1$

素因数の和:368

約数の個数: 64

約数和(自身を含む): 49593600

約数和(自身を除く): 30647784

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 29, 58, 87, 116, 163, 167, 174, 232, 326, 334, 348, 489, 501, 652, 668, 696, 978, 1002, 1304, 1336, 1956, 2004, 3912, 4008, 4727, 4843, 9454, 9686, 14181, 14529, 18908, 19372, 27221, 28362, 29058, 37816, 38744, 54442, 56724, 58116, 81663, 108884, 113448, 116232, 163326, 217768, 326652, 653304, 789409, 1578818, 2368227, 3157636, 4736454, 6315272, 9472908, 18945816]

約数ペア:

[(1, 18945816), (2, 9472908), (3, 6315272), (4, 4736454), (6, 3157636), (8, 2368227), (12, 1578818), (24, 789409), (29, 653304), (58, 326652), (87, 217768), (116, 163326), (163, 116232), (167, 113448), (174, 108884), (232, 81663), (326, 58116), (334, 56724), (348, 54442), (489, 38744), (501, 37816), (652, 29058), (668, 28362), (696, 27221), (978, 19372), (1002, 18908), (1304, 14529), (1336, 14181), (1956, 9686), (2004, 9454), (3912, 4843), (4008, 4727)]