121427721

素因数分解:

$3^3\times {\mathrm{503}}^1\times {\mathrm{8941}}^1$

素因数の和:9453

約数の個数: 16

約数和(自身を含む): 180270720

約数和(自身を除く): 58842999

約数列:

[1, 3, 9, 27, 503, 1509, 4527, 8941, 13581, 26823, 80469, 241407, 4497323, 13491969, 40475907, 121427721]

約数ペア:

[(1, 121427721), (3, 40475907), (9, 13491969), (27, 4497323), (503, 241407), (1509, 80469), (4527, 26823), (8941, 13581)]