26981505

素因数分解:

$3^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{419}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 49533120

約数和(自身を除く): 22551615

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 81, 135, 159, 243, 265, 405, 419, 477, 795, 1215, 1257, 1431, 2095, 2385, 3771, 4293, 6285, 7155, 11313, 12879, 18855, 21465, 22207, 33939, 56565, 64395, 66621, 101817, 111035, 169695, 199863, 333105, 509085, 599589, 999315, 1798767, 2997945, 5396301, 8993835, 26981505]

約数ペア:

[(1, 26981505), (3, 8993835), (5, 5396301), (9, 2997945), (15, 1798767), (27, 999315), (45, 599589), (53, 509085), (81, 333105), (135, 199863), (159, 169695), (243, 111035), (265, 101817), (405, 66621), (419, 64395), (477, 56565), (795, 33939), (1215, 22207), (1257, 21465), (1431, 18855), (2095, 12879), (2385, 11313), (3771, 7155), (4293, 6285)]