25515

素因数分解:

$3^6\times 5^1\times 7^1$

素因数の和:30

約数の個数: 28

約数和(自身を含む): 52464

約数和(自身を除く): 26949

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 243, 315, 405, 567, 729, 945, 1215, 1701, 2835, 3645, 5103, 8505, 25515]

約数ペア:

[(1, 25515), (3, 8505), (5, 5103), (7, 3645), (9, 2835), (15, 1701), (21, 1215), (27, 945), (35, 729), (45, 567), (63, 405), (81, 315), (105, 243), (135, 189)]