28331373

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{18481}}^1$

素因数の和:18564

約数の個数: 16

約数和(自身を含む): 43765376

約数和(自身を除く): 15434003

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 18481, 55443, 129367, 388101, 1349113, 4047339, 9443791, 28331373]

約数ペア:

[(1, 28331373), (3, 9443791), (7, 4047339), (21, 1349113), (73, 388101), (219, 129367), (511, 55443), (1533, 18481)]