28428351

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71249}}^1$

素因数の和:71278

約数の個数: 16

約数和(自身を含む): 45600000

約数和(自身を除く): 17171649

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 71249, 213747, 498743, 1353731, 1496229, 4061193, 9476117, 28428351]

約数ペア:

[(1, 28428351), (3, 9476117), (7, 4061193), (19, 1496229), (21, 1353731), (57, 498743), (133, 213747), (399, 71249)]