21978642

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{1931}}^1$

素因数の和:2214

約数の個数: 32

約数和(自身を含む): 50448384

約数和(自身を除く): 28469742

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 271, 542, 813, 1626, 1897, 1931, 3794, 3862, 5691, 5793, 11382, 11586, 13517, 27034, 40551, 81102, 523301, 1046602, 1569903, 3139806, 3663107, 7326214, 10989321, 21978642]

約数ペア:

[(1, 21978642), (2, 10989321), (3, 7326214), (6, 3663107), (7, 3139806), (14, 1569903), (21, 1046602), (42, 523301), (271, 81102), (542, 40551), (813, 27034), (1626, 13517), (1897, 11586), (1931, 11382), (3794, 5793), (3862, 5691)]