19315216

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{719}}^1$

素因数の和:823

約数の個数: 40

約数和(自身を含む): 39640320

約数和(自身を除く): 20325104

約数列:

[1, 2, 4, 8, 16, 23, 46, 73, 92, 146, 184, 292, 368, 584, 719, 1168, 1438, 1679, 2876, 3358, 5752, 6716, 11504, 13432, 16537, 26864, 33074, 52487, 66148, 104974, 132296, 209948, 264592, 419896, 839792, 1207201, 2414402, 4828804, 9657608, 19315216]

約数ペア:

[(1, 19315216), (2, 9657608), (4, 4828804), (8, 2414402), (16, 1207201), (23, 839792), (46, 419896), (73, 264592), (92, 209948), (146, 132296), (184, 104974), (292, 66148), (368, 52487), (584, 33074), (719, 26864), (1168, 16537), (1438, 13432), (1679, 11504), (2876, 6716), (3358, 5752)]