16399851

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{389}}^1$

素因数の和:475

約数の個数: 32

約数和(自身を含む): 25159680

約数和(自身を除く): 8759829

約数列:

[1, 3, 13, 23, 39, 47, 69, 141, 299, 389, 611, 897, 1081, 1167, 1833, 3243, 5057, 8947, 14053, 15171, 18283, 26841, 42159, 54849, 116311, 237679, 348933, 420509, 713037, 1261527, 5466617, 16399851]

約数ペア:

[(1, 16399851), (3, 5466617), (13, 1261527), (23, 713037), (39, 420509), (47, 348933), (69, 237679), (141, 116311), (299, 54849), (389, 42159), (611, 26841), (897, 18283), (1081, 15171), (1167, 14053), (1833, 8947), (3243, 5057)]