21046676

素因数分解:

$2^2\times 7^2\times {\mathrm{167}}^1\times {\mathrm{643}}^1$

素因数の和:828

約数の個数: 36

約数和(自身を含む): 43168608

約数和(自身を除く): 22121932

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 167, 196, 334, 643, 668, 1169, 1286, 2338, 2572, 4501, 4676, 8183, 9002, 16366, 18004, 31507, 32732, 63014, 107381, 126028, 214762, 429524, 751667, 1503334, 3006668, 5261669, 10523338, 21046676]

約数ペア:

[(1, 21046676), (2, 10523338), (4, 5261669), (7, 3006668), (14, 1503334), (28, 751667), (49, 429524), (98, 214762), (167, 126028), (196, 107381), (334, 63014), (643, 32732), (668, 31507), (1169, 18004), (1286, 16366), (2338, 9002), (2572, 8183), (4501, 4676)]