20898645

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32401}}^1$

素因数の和:32452

約数の個数: 16

約数和(自身を含む): 34216512

約数和(自身を除く): 13317867

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 32401, 97203, 162005, 486015, 1393243, 4179729, 6966215, 20898645]

約数ペア:

[(1, 20898645), (3, 6966215), (5, 4179729), (15, 1393243), (43, 486015), (129, 162005), (215, 97203), (645, 32401)]