21000620144

素因数分解:

$2^4\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2568569}}^1$

素因数の和:2568657

約数の個数: 40

約数和(自身を含む): 47138396640

約数和(自身を除く): 26137776496

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 73, 112, 146, 292, 511, 584, 1022, 1168, 2044, 4088, 8176, 2568569, 5137138, 10274276, 17979983, 20548552, 35959966, 41097104, 71919932, 143839864, 187505537, 287679728, 375011074, 750022148, 1312538759, 1500044296, 2625077518, 3000088592, 5250155036, 10500310072, 21000620144]

約数ペア:

[(1, 21000620144), (2, 10500310072), (4, 5250155036), (7, 3000088592), (8, 2625077518), (14, 1500044296), (16, 1312538759), (28, 750022148), (56, 375011074), (73, 287679728), (112, 187505537), (146, 143839864), (292, 71919932), (511, 41097104), (584, 35959966), (1022, 20548552), (1168, 17979983), (2044, 10274276), (4088, 5137138), (8176, 2568569)]