18789735

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{509}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 31726080

約数和(自身を除く): 12936345

約数列:

[1, 3, 5, 15, 23, 69, 107, 115, 321, 345, 509, 535, 1527, 1605, 2461, 2545, 7383, 7635, 11707, 12305, 35121, 36915, 54463, 58535, 163389, 175605, 272315, 816945, 1252649, 3757947, 6263245, 18789735]

約数ペア:

[(1, 18789735), (3, 6263245), (5, 3757947), (15, 1252649), (23, 816945), (69, 272315), (107, 175605), (115, 163389), (321, 58535), (345, 54463), (509, 36915), (535, 35121), (1527, 12305), (1605, 11707), (2461, 7635), (2545, 7383)]