20714890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{541}}^1\times {\mathrm{547}}^1$

素因数の和:1102

約数の個数: 32

約数和(自身を含む): 42770304

約数和(自身を除く): 22055414

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 541, 547, 1082, 1094, 2705, 2735, 3787, 3829, 5410, 5470, 7574, 7658, 18935, 19145, 37870, 38290, 295927, 591854, 1479635, 2071489, 2959270, 4142978, 10357445, 20714890]

約数ペア:

[(1, 20714890), (2, 10357445), (5, 4142978), (7, 2959270), (10, 2071489), (14, 1479635), (35, 591854), (70, 295927), (541, 38290), (547, 37870), (1082, 19145), (1094, 18935), (2705, 7658), (2735, 7574), (3787, 5470), (3829, 5410)]