18705345

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{20443}}^1$

素因数の和:20512

約数の個数: 16

約数和(自身を含む): 30420672

約数和(自身を除く): 11715327

約数列:

[1, 3, 5, 15, 61, 183, 305, 915, 20443, 61329, 102215, 306645, 1247023, 3741069, 6235115, 18705345]

約数ペア:

[(1, 18705345), (3, 6235115), (5, 3741069), (15, 1247023), (61, 306645), (183, 102215), (305, 61329), (915, 20443)]