19687954

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:163

約数の個数: 64

約数和(自身を含む): 37594368

約数和(自身を除く): 17906414

約数列:

[1, 2, 11, 13, 22, 23, 26, 41, 46, 73, 82, 143, 146, 253, 286, 299, 451, 506, 533, 598, 803, 902, 943, 949, 1066, 1606, 1679, 1886, 1898, 2993, 3289, 3358, 5863, 5986, 6578, 10373, 10439, 11726, 12259, 18469, 20746, 20878, 21827, 24518, 32923, 36938, 38909, 43654, 65846, 68839, 77818, 134849, 137678, 240097, 269698, 427999, 480194, 757229, 855998, 894907, 1514458, 1789814, 9843977, 19687954]

約数ペア:

[(1, 19687954), (2, 9843977), (11, 1789814), (13, 1514458), (22, 894907), (23, 855998), (26, 757229), (41, 480194), (46, 427999), (73, 269698), (82, 240097), (143, 137678), (146, 134849), (253, 77818), (286, 68839), (299, 65846), (451, 43654), (506, 38909), (533, 36938), (598, 32923), (803, 24518), (902, 21827), (943, 20878), (949, 20746), (1066, 18469), (1606, 12259), (1679, 11726), (1886, 10439), (1898, 10373), (2993, 6578), (3289, 5986), (3358, 5863)]