28911909

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{15773}}^1$

素因数の和:15836

約数の個数: 16

約数和(自身を含む): 42400512

約数和(自身を除く): 13488603

約数列:

[1, 3, 13, 39, 47, 141, 611, 1833, 15773, 47319, 205049, 615147, 741331, 2223993, 9637303, 28911909]

約数ペア:

[(1, 28911909), (3, 9637303), (13, 2223993), (39, 741331), (47, 615147), (141, 205049), (611, 47319), (1833, 15773)]