20459523

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1091}}^1$

素因数の和:1167

約数の個数: 32

約数和(自身を含む): 33546240

約数和(自身を除く): 13086717

約数列:

[1, 3, 7, 19, 21, 47, 57, 133, 141, 329, 399, 893, 987, 1091, 2679, 3273, 6251, 7637, 18753, 20729, 22911, 51277, 62187, 145103, 153831, 358939, 435309, 974263, 1076817, 2922789, 6819841, 20459523]

約数ペア:

[(1, 20459523), (3, 6819841), (7, 2922789), (19, 1076817), (21, 974263), (47, 435309), (57, 358939), (133, 153831), (141, 145103), (329, 62187), (399, 51277), (893, 22911), (987, 20729), (1091, 18753), (2679, 7637), (3273, 6251)]