28664139

素因数分解:

$3^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{6469}}^1$

素因数の和:6690

約数の個数: 16

約数和(自身を含む): 43892480

約数和(自身を除く): 15228341

約数列:

[1, 3, 7, 21, 211, 633, 1477, 4431, 6469, 19407, 45283, 135849, 1364959, 4094877, 9554713, 28664139]

約数ペア:

[(1, 28664139), (3, 9554713), (7, 4094877), (21, 1364959), (211, 135849), (633, 45283), (1477, 19407), (4431, 6469)]