19887804

素因数分解:

$2^2\times 3^2\times {\mathrm{331}}^1\times {\mathrm{1669}}^1$

素因数の和:2010

約数の個数: 36

約数和(自身を含む): 50454040

約数和(自身を除く): 30566236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 331, 662, 993, 1324, 1669, 1986, 2979, 3338, 3972, 5007, 5958, 6676, 10014, 11916, 15021, 20028, 30042, 60084, 552439, 1104878, 1657317, 2209756, 3314634, 4971951, 6629268, 9943902, 19887804]

約数ペア:

[(1, 19887804), (2, 9943902), (3, 6629268), (4, 4971951), (6, 3314634), (9, 2209756), (12, 1657317), (18, 1104878), (36, 552439), (331, 60084), (662, 30042), (993, 20028), (1324, 15021), (1669, 11916), (1986, 10014), (2979, 6676), (3338, 5958), (3972, 5007)]