221621805

素因数分解:

$3^3\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1627}}^1$

素因数の和:2650

約数の個数: 32

約数和(自身を含む): 394627200

約数和(自身を除く): 173005395

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1009, 1627, 3027, 4881, 5045, 8135, 9081, 14643, 15135, 24405, 27243, 43929, 45405, 73215, 136215, 219645, 1641643, 4924929, 8208215, 14774787, 24624645, 44324361, 73873935, 221621805]

約数ペア:

[(1, 221621805), (3, 73873935), (5, 44324361), (9, 24624645), (15, 14774787), (27, 8208215), (45, 4924929), (135, 1641643), (1009, 219645), (1627, 136215), (3027, 73215), (4881, 45405), (5045, 43929), (8135, 27243), (9081, 24405), (14643, 15135)]