21526605

素因数分解:

$3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6553}}^1$

素因数の和:6637

約数の個数: 24

約数和(自身を含む): 37829688

約数和(自身を除く): 16303083

約数列:

[1, 3, 5, 9, 15, 45, 73, 219, 365, 657, 1095, 3285, 6553, 19659, 32765, 58977, 98295, 294885, 478369, 1435107, 2391845, 4305321, 7175535, 21526605]

約数ペア:

[(1, 21526605), (3, 7175535), (5, 4305321), (9, 2391845), (15, 1435107), (45, 478369), (73, 294885), (219, 98295), (365, 58977), (657, 32765), (1095, 19659), (3285, 6553)]