15813985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 22435200

約数和(自身を除く): 6621215

約数列:

[1, 5, 11, 19, 37, 55, 95, 185, 209, 407, 409, 703, 1045, 2035, 2045, 3515, 4499, 7733, 7771, 15133, 22495, 38665, 38855, 75665, 85481, 166463, 287527, 427405, 832315, 1437635, 3162797, 15813985]

約数ペア:

[(1, 15813985), (5, 3162797), (11, 1437635), (19, 832315), (37, 427405), (55, 287527), (95, 166463), (185, 85481), (209, 75665), (407, 38855), (409, 38665), (703, 22495), (1045, 15133), (2035, 7771), (2045, 7733), (3515, 4499)]