21453711

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{7937}}^1$

素因数の和:8010

約数の個数: 16

約数和(自身を含む): 30862944

約数和(自身を除く): 9409233

約数列:

[1, 3, 17, 51, 53, 159, 901, 2703, 7937, 23811, 134929, 404787, 420661, 1261983, 7151237, 21453711]

約数ペア:

[(1, 21453711), (3, 7151237), (17, 1261983), (51, 420661), (53, 404787), (159, 134929), (901, 23811), (2703, 7937)]