208520811

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{54773}}^1$

素因数の和:54832

約数の個数: 20

約数和(自身を含む): 318127392

約数和(自身を除く): 109606581

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 54773, 164319, 492957, 1478871, 2574331, 4436613, 7722993, 23168979, 69506937, 208520811]

約数ペア:

[(1, 208520811), (3, 69506937), (9, 23168979), (27, 7722993), (47, 4436613), (81, 2574331), (141, 1478871), (423, 492957), (1269, 164319), (3807, 54773)]