20954812

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{18127}}^1$

素因数の和:18165

約数の個数: 18

約数和(自身を含む): 38957072

約数和(自身を除く): 18002260

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 18127, 36254, 72508, 308159, 616318, 1232636, 5238703, 10477406, 20954812]

約数ペア:

[(1, 20954812), (2, 10477406), (4, 5238703), (17, 1232636), (34, 616318), (68, 308159), (289, 72508), (578, 36254), (1156, 18127)]