21808374

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{519247}}^1$

素因数の和:519259

約数の個数: 16

約数和(自身を含む): 49847808

約数和(自身を除く): 28039434

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 519247, 1038494, 1557741, 3115482, 3634729, 7269458, 10904187, 21808374]

約数ペア:

[(1, 21808374), (2, 10904187), (3, 7269458), (6, 3634729), (7, 3115482), (14, 1557741), (21, 1038494), (42, 519247)]