28840137

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 42147840

約数和(自身を除く): 13307703

約数列:

[1, 3, 23, 31, 69, 93, 97, 139, 291, 417, 713, 2139, 2231, 3007, 3197, 4309, 6693, 9021, 9591, 12927, 13483, 40449, 69161, 99107, 207483, 297321, 310109, 417973, 930327, 1253919, 9613379, 28840137]

約数ペア:

[(1, 28840137), (3, 9613379), (23, 1253919), (31, 930327), (69, 417973), (93, 310109), (97, 297321), (139, 207483), (291, 99107), (417, 69161), (713, 40449), (2139, 13483), (2231, 12927), (3007, 9591), (3197, 9021), (4309, 6693)]