21570156

素因数分解:

$2^2\times 3^2\times {\mathrm{359}}^1\times {\mathrm{1669}}^1$

素因数の和:2038

約数の個数: 36

約数和(自身を含む): 54709200

約数和(自身を除く): 33139044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 359, 718, 1077, 1436, 1669, 2154, 3231, 3338, 4308, 5007, 6462, 6676, 10014, 12924, 15021, 20028, 30042, 60084, 599171, 1198342, 1797513, 2396684, 3595026, 5392539, 7190052, 10785078, 21570156]

約数ペア:

[(1, 21570156), (2, 10785078), (3, 7190052), (4, 5392539), (6, 3595026), (9, 2396684), (12, 1797513), (18, 1198342), (36, 599171), (359, 60084), (718, 30042), (1077, 20028), (1436, 15021), (1669, 12924), (2154, 10014), (3231, 6676), (3338, 6462), (4308, 5007)]