21021664

素因数分解:

$2^5\times {\mathrm{73}}^1\times {\mathrm{8999}}^1$

素因数の和:9082

約数の個数: 24

約数和(自身を含む): 41958000

約数和(自身を除く): 20936336

約数列:

[1, 2, 4, 8, 16, 32, 73, 146, 292, 584, 1168, 2336, 8999, 17998, 35996, 71992, 143984, 287968, 656927, 1313854, 2627708, 5255416, 10510832, 21021664]

約数ペア:

[(1, 21021664), (2, 10510832), (4, 5255416), (8, 2627708), (16, 1313854), (32, 656927), (73, 287968), (146, 143984), (292, 71992), (584, 35996), (1168, 17998), (2336, 8999)]