19821728

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{439}}^1$

素因数の和:549

約数の個数: 48

約数和(自身を含む): 41912640

約数和(自身を除く): 22090912

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 83, 136, 166, 272, 332, 439, 544, 664, 878, 1328, 1411, 1756, 2656, 2822, 3512, 5644, 7024, 7463, 11288, 14048, 14926, 22576, 29852, 36437, 45152, 59704, 72874, 119408, 145748, 238816, 291496, 582992, 619429, 1165984, 1238858, 2477716, 4955432, 9910864, 19821728]

約数ペア:

[(1, 19821728), (2, 9910864), (4, 4955432), (8, 2477716), (16, 1238858), (17, 1165984), (32, 619429), (34, 582992), (68, 291496), (83, 238816), (136, 145748), (166, 119408), (272, 72874), (332, 59704), (439, 45152), (544, 36437), (664, 29852), (878, 22576), (1328, 14926), (1411, 14048), (1756, 11288), (2656, 7463), (2822, 7024), (3512, 5644)]