28772253

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{5003}}^1$

素因数の和:5086

約数の個数: 20

約数和(自身を含む): 43594848

約数和(自身を除く): 14822595

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5003, 5751, 15009, 45027, 135081, 355213, 405243, 1065639, 3196917, 9590751, 28772253]

約数ペア:

[(1, 28772253), (3, 9590751), (9, 3196917), (27, 1065639), (71, 405243), (81, 355213), (213, 135081), (639, 45027), (1917, 15009), (5003, 5751)]