21450328

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1447}}^1$

素因数の和:1579

約数の個数: 32

約数和(自身を含む): 43005600

約数和(自身を除く): 21555272

約数列:

[1, 2, 4, 8, 17, 34, 68, 109, 136, 218, 436, 872, 1447, 1853, 2894, 3706, 5788, 7412, 11576, 14824, 24599, 49198, 98396, 157723, 196792, 315446, 630892, 1261784, 2681291, 5362582, 10725164, 21450328]

約数ペア:

[(1, 21450328), (2, 10725164), (4, 5362582), (8, 2681291), (17, 1261784), (34, 630892), (68, 315446), (109, 196792), (136, 157723), (218, 98396), (436, 49198), (872, 24599), (1447, 14824), (1853, 11576), (2894, 7412), (3706, 5788)]