16687947

素因数分解:

$3^1\times {\mathrm{19}}^3\times {\mathrm{811}}^1$

素因数の和:871

約数の個数: 16

約数和(自身を含む): 23515520

約数和(自身を除く): 6827573

約数列:

[1, 3, 19, 57, 361, 811, 1083, 2433, 6859, 15409, 20577, 46227, 292771, 878313, 5562649, 16687947]

約数ペア:

[(1, 16687947), (3, 5562649), (19, 878313), (57, 292771), (361, 46227), (811, 20577), (1083, 15409), (2433, 6859)]