281693181

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{19991}}^1$

素因数の和:20073

約数の個数: 32

約数和(自身を含む): 475969536

約数和(自身を除く): 194276355

約数列:

[1, 3, 7, 11, 21, 33, 61, 77, 183, 231, 427, 671, 1281, 2013, 4697, 14091, 19991, 59973, 139937, 219901, 419811, 659703, 1219451, 1539307, 3658353, 4617921, 8536157, 13413961, 25608471, 40241883, 93897727, 281693181]

約数ペア:

[(1, 281693181), (3, 93897727), (7, 40241883), (11, 25608471), (21, 13413961), (33, 8536157), (61, 4617921), (77, 3658353), (183, 1539307), (231, 1219451), (427, 659703), (671, 419811), (1281, 219901), (2013, 139937), (4697, 59973), (14091, 19991)]