28445907

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71293}}^1$

素因数の和:71322

約数の個数: 16

約数和(自身を含む): 45628160

約数和(自身を除く): 17182253

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 71293, 213879, 499051, 1354567, 1497153, 4063701, 9481969, 28445907]

約数ペア:

[(1, 28445907), (3, 9481969), (7, 4063701), (19, 1497153), (21, 1354567), (57, 499051), (133, 213879), (399, 71293)]