1720995

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{397}}^1$

素因数の和:439

約数の個数: 24

約数和(自身を含む): 2932464

約数和(自身を除く): 1211469

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 289, 397, 867, 1191, 1445, 1985, 4335, 5955, 6749, 20247, 33745, 101235, 114733, 344199, 573665, 1720995]

約数ペア:

[(1, 1720995), (3, 573665), (5, 344199), (15, 114733), (17, 101235), (51, 33745), (85, 20247), (255, 6749), (289, 5955), (397, 4335), (867, 1985), (1191, 1445)]