16400385

素因数分解:

$3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{4391}}^1$

素因数の和:4485

約数の個数: 24

約数和(自身を含む): 28776384

約数和(自身を除く): 12375999

約数列:

[1, 3, 5, 9, 15, 45, 83, 249, 415, 747, 1245, 3735, 4391, 13173, 21955, 39519, 65865, 197595, 364453, 1093359, 1822265, 3280077, 5466795, 16400385]

約数ペア:

[(1, 16400385), (3, 5466795), (5, 3280077), (9, 1822265), (15, 1093359), (45, 364453), (83, 197595), (249, 65865), (415, 39519), (747, 21955), (1245, 13173), (3735, 4391)]