21553441

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{433}}^1\times {\mathrm{547}}^1$

素因数の和:1000

約数の個数: 16

約数和(自身を含む): 26637184

約数和(自身を除く): 5083743

約数列:

[1, 7, 13, 91, 433, 547, 3031, 3829, 5629, 7111, 39403, 49777, 236851, 1657957, 3079063, 21553441]

約数ペア:

[(1, 21553441), (7, 3079063), (13, 1657957), (91, 236851), (433, 49777), (547, 39403), (3031, 7111), (3829, 5629)]