28384881

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{367}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 45219840

約数和(自身を除く): 16834959

約数列:

[1, 3, 7, 21, 29, 87, 127, 203, 367, 381, 609, 889, 1101, 2569, 2667, 3683, 7707, 10643, 11049, 25781, 31929, 46609, 74501, 77343, 139827, 223503, 326263, 978789, 1351661, 4054983, 9461627, 28384881]

約数ペア:

[(1, 28384881), (3, 9461627), (7, 4054983), (21, 1351661), (29, 978789), (87, 326263), (127, 223503), (203, 139827), (367, 77343), (381, 74501), (609, 46609), (889, 31929), (1101, 25781), (2569, 11049), (2667, 10643), (3683, 7707)]