21451005

素因数分解:

$3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1759}}^1$

素因数の和:2041

約数の個数: 24

約数和(自身を含む): 37340160

約数和(自身を除く): 15889155

約数列:

[1, 3, 5, 9, 15, 45, 271, 813, 1355, 1759, 2439, 4065, 5277, 8795, 12195, 15831, 26385, 79155, 476689, 1430067, 2383445, 4290201, 7150335, 21451005]

約数ペア:

[(1, 21451005), (3, 7150335), (5, 4290201), (9, 2383445), (15, 1430067), (45, 476689), (271, 79155), (813, 26385), (1355, 15831), (1759, 12195), (2439, 8795), (4065, 5277)]