1880739

素因数分解:

$3^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:157

約数の個数: 40

約数和(自身を含む): 3345408

約数和(自身を除く): 1464669

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 81, 93, 107, 189, 217, 279, 321, 567, 651, 749, 837, 963, 1953, 2247, 2511, 2889, 3317, 5859, 6741, 8667, 9951, 17577, 20223, 23219, 29853, 60669, 69657, 89559, 208971, 268677, 626913, 1880739]

約数ペア:

[(1, 1880739), (3, 626913), (7, 268677), (9, 208971), (21, 89559), (27, 69657), (31, 60669), (63, 29853), (81, 23219), (93, 20223), (107, 17577), (189, 9951), (217, 8667), (279, 6741), (321, 5859), (567, 3317), (651, 2889), (749, 2511), (837, 2247), (963, 1953)]