21784310

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{1009}}^1$

素因数の和:1160

約数の個数: 32

約数和(自身を含む): 41886720

約数和(自身を除く): 20102410

約数列:

[1, 2, 5, 10, 17, 34, 85, 127, 170, 254, 635, 1009, 1270, 2018, 2159, 4318, 5045, 10090, 10795, 17153, 21590, 34306, 85765, 128143, 171530, 256286, 640715, 1281430, 2178431, 4356862, 10892155, 21784310]

約数ペア:

[(1, 21784310), (2, 10892155), (5, 4356862), (10, 2178431), (17, 1281430), (34, 640715), (85, 256286), (127, 171530), (170, 128143), (254, 85765), (635, 34306), (1009, 21590), (1270, 17153), (2018, 10795), (2159, 10090), (4318, 5045)]