28870779

素因数分解:

$3^1\times 7^1\times {\mathrm{619}}^1\times {\mathrm{2221}}^1$

素因数の和:2850

約数の個数: 16

約数和(自身を含む): 44084480

約数和(自身を除く): 15213701

約数列:

[1, 3, 7, 21, 619, 1857, 2221, 4333, 6663, 12999, 15547, 46641, 1374799, 4124397, 9623593, 28870779]

約数ペア:

[(1, 28870779), (3, 9623593), (7, 4124397), (21, 1374799), (619, 46641), (1857, 15547), (2221, 12999), (4333, 6663)]