21305904

素因数分解:

$2^4\times 3^1\times {\mathrm{443873}}^1$

素因数の和:443884

約数の個数: 20

約数和(自身を含む): 55040376

約数和(自身を除く): 33734472

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 443873, 887746, 1331619, 1775492, 2663238, 3550984, 5326476, 7101968, 10652952, 21305904]

約数ペア:

[(1, 21305904), (2, 10652952), (3, 7101968), (4, 5326476), (6, 3550984), (8, 2663238), (12, 1775492), (16, 1331619), (24, 887746), (48, 443873)]