21000112

素因数分解:

$2^4\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1933}}^1$

素因数の和:2045

約数の個数: 40

約数和(自身を含む): 47003936

約数和(自身を除く): 26003824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 97, 112, 194, 388, 679, 776, 1358, 1552, 1933, 2716, 3866, 5432, 7732, 10864, 13531, 15464, 27062, 30928, 54124, 108248, 187501, 216496, 375002, 750004, 1312507, 1500008, 2625014, 3000016, 5250028, 10500056, 21000112]

約数ペア:

[(1, 21000112), (2, 10500056), (4, 5250028), (7, 3000016), (8, 2625014), (14, 1500008), (16, 1312507), (28, 750004), (56, 375002), (97, 216496), (112, 187501), (194, 108248), (388, 54124), (679, 30928), (776, 27062), (1358, 15464), (1552, 13531), (1933, 10864), (2716, 7732), (3866, 5432)]