258438081

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{211661}}^1$

素因数の和:211712

約数の個数: 16

約数和(自身を含む): 386071488

約数和(自身を除く): 127633407

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 211661, 634983, 2328271, 6984813, 7831457, 23494371, 86146027, 258438081]

約数ペア:

[(1, 258438081), (3, 86146027), (11, 23494371), (33, 7831457), (37, 6984813), (111, 2328271), (407, 634983), (1221, 211661)]