21504742

素因数分解:

$2^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{6427}}^1$

素因数の和:6675

約数の個数: 16

約数和(自身を含む): 37025280

約数和(自身を除く): 15520538

約数列:

[1, 2, 7, 14, 239, 478, 1673, 3346, 6427, 12854, 44989, 89978, 1536053, 3072106, 10752371, 21504742]

約数ペア:

[(1, 21504742), (2, 10752371), (7, 3072106), (14, 1536053), (239, 89978), (478, 44989), (1673, 12854), (3346, 6427)]