20403047

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1\times {\mathrm{359}}^1$

素因数の和:742

約数の個数: 16

約数和(自身を含む): 24468480

約数和(自身を除く): 4065433

約数列:

[1, 7, 23, 161, 353, 359, 2471, 2513, 8119, 8257, 56833, 57799, 126727, 887089, 2914721, 20403047]

約数ペア:

[(1, 20403047), (7, 2914721), (23, 887089), (161, 126727), (353, 57799), (359, 56833), (2471, 8257), (2513, 8119)]