28406541

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{397}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 42640128

約数和(自身を除く): 14233587

約数列:

[1, 3, 17, 23, 51, 61, 69, 183, 391, 397, 1037, 1173, 1191, 1403, 3111, 4209, 6749, 9131, 20247, 23851, 24217, 27393, 71553, 72651, 155227, 411689, 465681, 556991, 1235067, 1670973, 9468847, 28406541]

約数ペア:

[(1, 28406541), (3, 9468847), (17, 1670973), (23, 1235067), (51, 556991), (61, 465681), (69, 411689), (183, 155227), (391, 72651), (397, 71553), (1037, 27393), (1173, 24217), (1191, 23851), (1403, 20247), (3111, 9131), (4209, 6749)]