21000907977

素因数分解:

$3^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{4149557}}^1$

素因数の和:4149808

約数の個数: 16

約数和(自身を含む): 32134177152

約数和(自身を除く): 11133269175

約数列:

[1, 3, 7, 21, 241, 723, 1687, 5061, 4149557, 12448671, 29046899, 87140697, 1000043237, 3000129711, 7000302659, 21000907977]

約数ペア:

[(1, 21000907977), (3, 7000302659), (7, 3000129711), (21, 1000043237), (241, 87140697), (723, 29046899), (1687, 12448671), (5061, 4149557)]