21550655

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1409}}^1$

素因数の和:1463

約数の個数: 32

約数和(自身を含む): 32486400

約数和(自身を除く): 10935745

約数列:

[1, 5, 7, 19, 23, 35, 95, 115, 133, 161, 437, 665, 805, 1409, 2185, 3059, 7045, 9863, 15295, 26771, 32407, 49315, 133855, 162035, 187397, 226849, 615733, 936985, 1134245, 3078665, 4310131, 21550655]

約数ペア:

[(1, 21550655), (5, 4310131), (7, 3078665), (19, 1134245), (23, 936985), (35, 615733), (95, 226849), (115, 187397), (133, 162035), (161, 133855), (437, 49315), (665, 32407), (805, 26771), (1409, 15295), (2185, 9863), (3059, 7045)]