21423963

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{727}}^1$

素因数の和:807

約数の個数: 32

約数和(自身を含む): 33546240

約数和(自身を除く): 12122277

約数列:

[1, 3, 11, 19, 33, 47, 57, 141, 209, 517, 627, 727, 893, 1551, 2181, 2679, 7997, 9823, 13813, 23991, 29469, 34169, 41439, 102507, 151943, 375859, 455829, 649211, 1127577, 1947633, 7141321, 21423963]

約数ペア:

[(1, 21423963), (3, 7141321), (11, 1947633), (19, 1127577), (33, 649211), (47, 455829), (57, 375859), (141, 151943), (209, 102507), (517, 41439), (627, 34169), (727, 29469), (893, 23991), (1551, 13813), (2181, 9823), (2679, 7997)]