399653761

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:421

約数の個数: 32

約数和(自身を含む): 459533088

約数和(自身を除く): 59879327

約数列:

[1, 13, 37, 53, 61, 257, 481, 689, 793, 1961, 2257, 3233, 3341, 9509, 13621, 15677, 25493, 29341, 42029, 119621, 123617, 177073, 203801, 503977, 580049, 830881, 1555073, 6551701, 7540637, 10801453, 30742597, 399653761]

約数ペア:

[(1, 399653761), (13, 30742597), (37, 10801453), (53, 7540637), (61, 6551701), (257, 1555073), (481, 830881), (689, 580049), (793, 503977), (1961, 203801), (2257, 177073), (3233, 123617), (3341, 119621), (9509, 42029), (13621, 29341), (15677, 25493)]