217599345

素因数分解:

$3^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{15649}}^1$

素因数の和:15766

約数の個数: 32

約数和(自身を含む): 390624000

約数和(自身を除く): 173024655

約数列:

[1, 3, 5, 9, 15, 27, 45, 103, 135, 309, 515, 927, 1545, 2781, 4635, 13905, 15649, 46947, 78245, 140841, 234735, 422523, 704205, 1611847, 2112615, 4835541, 8059235, 14506623, 24177705, 43519869, 72533115, 217599345]

約数ペア:

[(1, 217599345), (3, 72533115), (5, 43519869), (9, 24177705), (15, 14506623), (27, 8059235), (45, 4835541), (103, 2112615), (135, 1611847), (309, 704205), (515, 422523), (927, 234735), (1545, 140841), (2781, 78245), (4635, 46947), (13905, 15649)]