18980511

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{7879}}^1$

素因数の和:7966

約数の個数: 16

約数和(自身を含む): 27989760

約数和(自身を除く): 9009249

約数列:

[1, 3, 11, 33, 73, 219, 803, 2409, 7879, 23637, 86669, 260007, 575167, 1725501, 6326837, 18980511]

約数ペア:

[(1, 18980511), (3, 6326837), (11, 1725501), (33, 575167), (73, 260007), (219, 86669), (803, 23637), (2409, 7879)]