21804465

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{27427}}^1$

素因数の和:27488

約数の個数: 16

約数和(自身を含む): 35546688

約数和(自身を除く): 13742223

約数列:

[1, 3, 5, 15, 53, 159, 265, 795, 27427, 82281, 137135, 411405, 1453631, 4360893, 7268155, 21804465]

約数ペア:

[(1, 21804465), (3, 7268155), (5, 4360893), (15, 1453631), (53, 411405), (159, 137135), (265, 82281), (795, 27427)]