28080447

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{647}}^1$

素因数の和:727

約数の個数: 32

約数和(自身を含む): 42550272

約数和(自身を除く): 14469825

約数列:

[1, 3, 17, 23, 37, 51, 69, 111, 391, 629, 647, 851, 1173, 1887, 1941, 2553, 10999, 14467, 14881, 23939, 32997, 43401, 44643, 71817, 252977, 406963, 550597, 758931, 1220889, 1651791, 9360149, 28080447]

約数ペア:

[(1, 28080447), (3, 9360149), (17, 1651791), (23, 1220889), (37, 758931), (51, 550597), (69, 406963), (111, 252977), (391, 71817), (629, 44643), (647, 43401), (851, 32997), (1173, 23939), (1887, 14881), (1941, 14467), (2553, 10999)]