21849945

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1259}}^1$

素因数の和:1369

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 16252455

約数列:

[1, 3, 5, 13, 15, 39, 65, 89, 195, 267, 445, 1157, 1259, 1335, 3471, 3777, 5785, 6295, 16367, 17355, 18885, 49101, 81835, 112051, 245505, 336153, 560255, 1456663, 1680765, 4369989, 7283315, 21849945]

約数ペア:

[(1, 21849945), (3, 7283315), (5, 4369989), (13, 1680765), (15, 1456663), (39, 560255), (65, 336153), (89, 245505), (195, 112051), (267, 81835), (445, 49101), (1157, 18885), (1259, 17355), (1335, 16367), (3471, 6295), (3777, 5785)]