19986792

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{439}}^1$

素因数の和:726

約数の個数: 64

約数和(自身を含む): 57446400

約数和(自身を除く): 37459608

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 271, 439, 542, 813, 878, 1084, 1317, 1626, 1756, 1897, 2168, 2634, 3073, 3252, 3512, 3794, 5268, 5691, 6146, 6504, 7588, 9219, 10536, 11382, 12292, 15176, 18438, 22764, 24584, 36876, 45528, 73752, 118969, 237938, 356907, 475876, 713814, 832783, 951752, 1427628, 1665566, 2498349, 2855256, 3331132, 4996698, 6662264, 9993396, 19986792]

約数ペア:

[(1, 19986792), (2, 9993396), (3, 6662264), (4, 4996698), (6, 3331132), (7, 2855256), (8, 2498349), (12, 1665566), (14, 1427628), (21, 951752), (24, 832783), (28, 713814), (42, 475876), (56, 356907), (84, 237938), (168, 118969), (271, 73752), (439, 45528), (542, 36876), (813, 24584), (878, 22764), (1084, 18438), (1317, 15176), (1626, 12292), (1756, 11382), (1897, 10536), (2168, 9219), (2634, 7588), (3073, 6504), (3252, 6146), (3512, 5691), (3794, 5268)]