31855989

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^2$

素因数の和:150

約数の個数: 48

約数和(自身を含む): 52001280

約数和(自身を除く): 20145291

約数列:

[1, 3, 11, 19, 23, 33, 47, 57, 69, 141, 209, 253, 437, 517, 627, 759, 893, 1081, 1311, 1551, 2209, 2679, 3243, 4807, 6627, 9823, 11891, 14421, 20539, 24299, 29469, 35673, 41971, 50807, 61617, 72897, 125913, 152421, 225929, 461681, 558877, 677787, 965333, 1385043, 1676631, 2895999, 10618663, 31855989]

約数ペア:

[(1, 31855989), (3, 10618663), (11, 2895999), (19, 1676631), (23, 1385043), (33, 965333), (47, 677787), (57, 558877), (69, 461681), (141, 225929), (209, 152421), (253, 125913), (437, 72897), (517, 61617), (627, 50807), (759, 41971), (893, 35673), (1081, 29469), (1311, 24299), (1551, 20539), (2209, 14421), (2679, 11891), (3243, 9823), (4807, 6627)]