18379137

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{631}}^1$

素因数の和:733

約数の個数: 32

約数和(自身を含む): 29931520

約数和(自身を除く): 11552383

約数列:

[1, 3, 7, 19, 21, 57, 73, 133, 219, 399, 511, 631, 1387, 1533, 1893, 4161, 4417, 9709, 11989, 13251, 29127, 35967, 46063, 83923, 138189, 251769, 322441, 875197, 967323, 2625591, 6126379, 18379137]

約数ペア:

[(1, 18379137), (3, 6126379), (7, 2625591), (19, 967323), (21, 875197), (57, 322441), (73, 251769), (133, 138189), (219, 83923), (399, 46063), (511, 35967), (631, 29127), (1387, 13251), (1533, 11989), (1893, 9709), (4161, 4417)]