21713880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{180949}}^1$

素因数の和:180963

約数の個数: 32

約数和(自身を含む): 65142000

約数和(自身を除く): 43428120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 180949, 361898, 542847, 723796, 904745, 1085694, 1447592, 1809490, 2171388, 2714235, 3618980, 4342776, 5428470, 7237960, 10856940, 21713880]

約数ペア:

[(1, 21713880), (2, 10856940), (3, 7237960), (4, 5428470), (5, 4342776), (6, 3618980), (8, 2714235), (10, 2171388), (12, 1809490), (15, 1447592), (20, 1085694), (24, 904745), (30, 723796), (40, 542847), (60, 361898), (120, 180949)]