21318051

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{2503}}^1$

素因数の和:2690

約数の個数: 16

約数和(自身を含む): 30288384

約数和(自身を除く): 8970333

約数列:

[1, 3, 17, 51, 167, 501, 2503, 2839, 7509, 8517, 42551, 127653, 418001, 1254003, 7106017, 21318051]

約数ペア:

[(1, 21318051), (3, 7106017), (17, 1254003), (51, 418001), (167, 127653), (501, 42551), (2503, 8517), (2839, 7509)]