19944604

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 19972196

約数列:

[1, 2, 4, 17, 19, 34, 38, 43, 68, 76, 86, 172, 323, 359, 646, 718, 731, 817, 1292, 1436, 1462, 1634, 2924, 3268, 6103, 6821, 12206, 13642, 13889, 15437, 24412, 27284, 27778, 30874, 55556, 61748, 115957, 231914, 262429, 293303, 463828, 524858, 586606, 1049716, 1173212, 4986151, 9972302, 19944604]

約数ペア:

[(1, 19944604), (2, 9972302), (4, 4986151), (17, 1173212), (19, 1049716), (34, 586606), (38, 524858), (43, 463828), (68, 293303), (76, 262429), (86, 231914), (172, 115957), (323, 61748), (359, 55556), (646, 30874), (718, 27778), (731, 27284), (817, 24412), (1292, 15437), (1436, 13889), (1462, 13642), (1634, 12206), (2924, 6821), (3268, 6103)]