21267455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{5297}}^1$

素因数の和:5386

約数の個数: 16

約数和(自身を含む): 28227744

約数和(自身を除く): 6960289

約数列:

[1, 5, 11, 55, 73, 365, 803, 4015, 5297, 26485, 58267, 291335, 386681, 1933405, 4253491, 21267455]

約数ペア:

[(1, 21267455), (5, 4253491), (11, 1933405), (55, 386681), (73, 291335), (365, 58267), (803, 26485), (4015, 5297)]