21789409

素因数分解:

${\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{337}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 23849280

約数和(自身を除く): 2059871

約数列:

[1, 19, 41, 83, 337, 779, 1577, 3403, 6403, 13817, 27971, 64657, 262523, 531449, 1146811, 21789409]

約数ペア:

[(1, 21789409), (19, 1146811), (41, 531449), (83, 262523), (337, 64657), (779, 27971), (1577, 13817), (3403, 6403)]