21961964

素因数分解:

$2^2\times {\mathrm{23}}^2\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:254

約数の個数: 36

約数和(自身を含む): 40970664

約数和(自身を除く): 19008700

約数列:

[1, 2, 4, 23, 46, 92, 97, 107, 194, 214, 388, 428, 529, 1058, 2116, 2231, 2461, 4462, 4922, 8924, 9844, 10379, 20758, 41516, 51313, 56603, 102626, 113206, 205252, 226412, 238717, 477434, 954868, 5490491, 10980982, 21961964]

約数ペア:

[(1, 21961964), (2, 10980982), (4, 5490491), (23, 954868), (46, 477434), (92, 238717), (97, 226412), (107, 205252), (194, 113206), (214, 102626), (388, 56603), (428, 51313), (529, 41516), (1058, 20758), (2116, 10379), (2231, 9844), (2461, 8924), (4462, 4922)]