19713954

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{263}}^1$

素因数の和:343

約数の個数: 48

約数和(自身を含む): 44041536

約数和(自身を除く): 24327582

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 263, 403, 526, 789, 806, 961, 1209, 1578, 1922, 2418, 2883, 3419, 5766, 6838, 8153, 10257, 12493, 16306, 20514, 24459, 24986, 37479, 48918, 74958, 105989, 211978, 252743, 317967, 505486, 635934, 758229, 1516458, 3285659, 6571318, 9856977, 19713954]

約数ペア:

[(1, 19713954), (2, 9856977), (3, 6571318), (6, 3285659), (13, 1516458), (26, 758229), (31, 635934), (39, 505486), (62, 317967), (78, 252743), (93, 211978), (186, 105989), (263, 74958), (403, 48918), (526, 37479), (789, 24986), (806, 24459), (961, 20514), (1209, 16306), (1578, 12493), (1922, 10257), (2418, 8153), (2883, 6838), (3419, 5766)]