20717648

素因数分解:

$2^4\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1907}}^1$

素因数の和:2019

約数の個数: 40

約数和(自身を含む): 46372032

約数和(自身を除く): 25654384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 97, 112, 194, 388, 679, 776, 1358, 1552, 1907, 2716, 3814, 5432, 7628, 10864, 13349, 15256, 26698, 30512, 53396, 106792, 184979, 213584, 369958, 739916, 1294853, 1479832, 2589706, 2959664, 5179412, 10358824, 20717648]

約数ペア:

[(1, 20717648), (2, 10358824), (4, 5179412), (7, 2959664), (8, 2589706), (14, 1479832), (16, 1294853), (28, 739916), (56, 369958), (97, 213584), (112, 184979), (194, 106792), (388, 53396), (679, 30512), (776, 26698), (1358, 15256), (1552, 13349), (1907, 10864), (2716, 7628), (3814, 5432)]