21199595

素因数分解:

$5^1\times {\mathrm{17}}^3\times {\mathrm{863}}^1$

素因数の和:919

約数の個数: 16

約数和(自身を含む): 27060480

約数和(自身を除く): 5860885

約数列:

[1, 5, 17, 85, 289, 863, 1445, 4315, 4913, 14671, 24565, 73355, 249407, 1247035, 4239919, 21199595]

約数ペア:

[(1, 21199595), (5, 4239919), (17, 1247035), (85, 249407), (289, 73355), (863, 24565), (1445, 14671), (4315, 4913)]