21244916

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2999}}^1$

素因数の和:3044

約数の個数: 48

約数和(自身を含む): 48384000

約数和(自身を除く): 27139084

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 77, 92, 154, 161, 253, 308, 322, 506, 644, 1012, 1771, 2999, 3542, 5998, 7084, 11996, 20993, 32989, 41986, 65978, 68977, 83972, 131956, 137954, 230923, 275908, 461846, 482839, 758747, 923692, 965678, 1517494, 1931356, 3034988, 5311229, 10622458, 21244916]

約数ペア:

[(1, 21244916), (2, 10622458), (4, 5311229), (7, 3034988), (11, 1931356), (14, 1517494), (22, 965678), (23, 923692), (28, 758747), (44, 482839), (46, 461846), (77, 275908), (92, 230923), (154, 137954), (161, 131956), (253, 83972), (308, 68977), (322, 65978), (506, 41986), (644, 32989), (1012, 20993), (1771, 11996), (2999, 7084), (3542, 5998)]