28208667

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 40642560

約数和(自身を除く): 12433893

約数列:

[1, 3, 31, 53, 59, 93, 97, 159, 177, 291, 1643, 1829, 3007, 3127, 4929, 5141, 5487, 5723, 9021, 9381, 15423, 17169, 96937, 159371, 177413, 290811, 303319, 478113, 532239, 909957, 9402889, 28208667]

約数ペア:

[(1, 28208667), (3, 9402889), (31, 909957), (53, 532239), (59, 478113), (93, 303319), (97, 290811), (159, 177413), (177, 159371), (291, 96937), (1643, 17169), (1829, 15423), (3007, 9381), (3127, 9021), (4929, 5723), (5141, 5487)]