21244964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21503}}^1$

素因数の和:21539

約数の個数: 24

約数和(自身を含む): 42147840

約数和(自身を除く): 20902876

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 21503, 43006, 86012, 279539, 408557, 559078, 817114, 1118156, 1634228, 5311241, 10622482, 21244964]

約数ペア:

[(1, 21244964), (2, 10622482), (4, 5311241), (13, 1634228), (19, 1118156), (26, 817114), (38, 559078), (52, 408557), (76, 279539), (247, 86012), (494, 43006), (988, 21503)]