21436245

素因数分解:

$3^6\times 5^1\times {\mathrm{5881}}^1$

素因数の和:5904

約数の個数: 28

約数和(自身を含む): 38574156

約数和(自身を除く): 17137911

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 5881, 17643, 29405, 52929, 88215, 158787, 264645, 476361, 793935, 1429083, 2381805, 4287249, 7145415, 21436245]

約数ペア:

[(1, 21436245), (3, 7145415), (5, 4287249), (9, 2381805), (15, 1429083), (27, 793935), (45, 476361), (81, 264645), (135, 158787), (243, 88215), (405, 52929), (729, 29405), (1215, 17643), (3645, 5881)]