18679329

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:259

約数の個数: 40

約数和(自身を含む): 29644032

約数和(自身を除く): 10964703

約数列:

[1, 3, 9, 27, 31, 43, 81, 93, 129, 173, 279, 387, 519, 837, 1161, 1333, 1557, 2511, 3483, 3999, 4671, 5363, 7439, 11997, 14013, 16089, 22317, 35991, 48267, 66951, 107973, 144801, 200853, 230609, 434403, 602559, 691827, 2075481, 6226443, 18679329]

約数ペア:

[(1, 18679329), (3, 6226443), (9, 2075481), (27, 691827), (31, 602559), (43, 434403), (81, 230609), (93, 200853), (129, 144801), (173, 107973), (279, 66951), (387, 48267), (519, 35991), (837, 22317), (1161, 16089), (1333, 14013), (1557, 11997), (2511, 7439), (3483, 5363), (3999, 4671)]