19223985

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{443}}^1$

素因数の和:725

約数の個数: 32

約数和(自身を含む): 33758208

約数和(自身を除く): 14534223

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 263, 443, 789, 1315, 1329, 2215, 2893, 3945, 4873, 6645, 8679, 14465, 14619, 24365, 43395, 73095, 116509, 349527, 582545, 1281599, 1747635, 3844797, 6407995, 19223985]

約数ペア:

[(1, 19223985), (3, 6407995), (5, 3844797), (11, 1747635), (15, 1281599), (33, 582545), (55, 349527), (165, 116509), (263, 73095), (443, 43395), (789, 24365), (1315, 14619), (1329, 14465), (2215, 8679), (2893, 6645), (3945, 4873)]