28987431

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{317}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 45059328

約数和(自身を除く): 16071897

約数列:

[1, 3, 11, 17, 33, 51, 163, 187, 317, 489, 561, 951, 1793, 2771, 3487, 5379, 5389, 8313, 10461, 16167, 30481, 51671, 59279, 91443, 155013, 177837, 568381, 878407, 1705143, 2635221, 9662477, 28987431]

約数ペア:

[(1, 28987431), (3, 9662477), (11, 2635221), (17, 1705143), (33, 878407), (51, 568381), (163, 177837), (187, 155013), (317, 91443), (489, 59279), (561, 51671), (951, 30481), (1793, 16167), (2771, 10461), (3487, 8313), (5379, 5389)]