1971945

素因数分解:

$3^6\times 5^1\times {\mathrm{541}}^1$

素因数の和:564

約数の個数: 28

約数和(自身を含む): 3554436

約数和(自身を除く): 1582491

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 541, 729, 1215, 1623, 2705, 3645, 4869, 8115, 14607, 24345, 43821, 73035, 131463, 219105, 394389, 657315, 1971945]

約数ペア:

[(1, 1971945), (3, 657315), (5, 394389), (9, 219105), (15, 131463), (27, 73035), (45, 43821), (81, 24345), (135, 14607), (243, 8115), (405, 4869), (541, 3645), (729, 2705), (1215, 1623)]