21693165

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2099}}^1$

素因数の和:2173

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 16409235

約数列:

[1, 3, 5, 13, 15, 39, 53, 65, 159, 195, 265, 689, 795, 2067, 2099, 3445, 6297, 10335, 10495, 27287, 31485, 81861, 111247, 136435, 333741, 409305, 556235, 1446211, 1668705, 4338633, 7231055, 21693165]

約数ペア:

[(1, 21693165), (3, 7231055), (5, 4338633), (13, 1668705), (15, 1446211), (39, 556235), (53, 409305), (65, 333741), (159, 136435), (195, 111247), (265, 81861), (689, 31485), (795, 27287), (2067, 10495), (2099, 10335), (3445, 6297)]