221616855

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{259201}}^1$

素因数の和:259231

約数の個数: 24

約数和(自身を含む): 404355120

約数和(自身を除く): 182738265

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 259201, 777603, 1296005, 2332809, 3888015, 4924819, 11664045, 14774457, 24624095, 44323371, 73872285, 221616855]

約数ペア:

[(1, 221616855), (3, 73872285), (5, 44323371), (9, 24624095), (15, 14774457), (19, 11664045), (45, 4924819), (57, 3888015), (95, 2332809), (171, 1296005), (285, 777603), (855, 259201)]