21521488

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28619}}^1$

素因数の和:28674

約数の個数: 20

約数和(自身を含む): 42586560

約数和(自身を除く): 21065072

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28619, 57238, 114476, 228952, 457904, 1345093, 2690186, 5380372, 10760744, 21521488]

約数ペア:

[(1, 21521488), (2, 10760744), (4, 5380372), (8, 2690186), (16, 1345093), (47, 457904), (94, 228952), (188, 114476), (376, 57238), (752, 28619)]