19916469

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{43391}}^1$

素因数の和:43417

約数の個数: 16

約数和(自身を含む): 31242240

約数和(自身を除く): 11325771

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 43391, 130173, 390519, 737647, 1171557, 2212941, 6638823, 19916469]

約数ペア:

[(1, 19916469), (3, 6638823), (9, 2212941), (17, 1171557), (27, 737647), (51, 390519), (153, 130173), (459, 43391)]