211312661

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1867}}^1$

素因数の和:1953

約数の個数: 32

約数和(自身を含む): 272578560

約数和(自身を除く): 61265899

約数列:

[1, 7, 19, 23, 37, 133, 161, 259, 437, 703, 851, 1867, 3059, 4921, 5957, 13069, 16169, 35473, 42941, 69079, 113183, 248311, 300587, 483553, 815879, 1312501, 1588817, 5711153, 9187507, 11121719, 30187523, 211312661]

約数ペア:

[(1, 211312661), (7, 30187523), (19, 11121719), (23, 9187507), (37, 5711153), (133, 1588817), (161, 1312501), (259, 815879), (437, 483553), (703, 300587), (851, 248311), (1867, 113183), (3059, 69079), (4921, 42941), (5957, 35473), (13069, 16169)]