18520953

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{271}}^1$

素因数の和:413

約数の個数: 32

約数和(自身を含む): 28723200

約数和(自身を除く): 10202247

約数列:

[1, 3, 11, 19, 33, 57, 109, 209, 271, 327, 627, 813, 1199, 2071, 2981, 3597, 5149, 6213, 8943, 15447, 22781, 29539, 56639, 68343, 88617, 169917, 324929, 561241, 974787, 1683723, 6173651, 18520953]

約数ペア:

[(1, 18520953), (3, 6173651), (11, 1683723), (19, 974787), (33, 561241), (57, 324929), (109, 169917), (209, 88617), (271, 68343), (327, 56639), (627, 29539), (813, 22781), (1199, 15447), (2071, 8943), (2981, 6213), (3597, 5149)]