28291113

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{3391}}^1$

素因数の和:3506

約数の個数: 20

約数和(自身を含む): 42684928

約数和(自身を除く): 14393815

約数列:

[1, 3, 9, 27, 81, 103, 309, 927, 2781, 3391, 8343, 10173, 30519, 91557, 274671, 349273, 1047819, 3143457, 9430371, 28291113]

約数ペア:

[(1, 28291113), (3, 9430371), (9, 3143457), (27, 1047819), (81, 349273), (103, 274671), (309, 91557), (927, 30519), (2781, 10173), (3391, 8343)]