21149247

素因数分解:

$3^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{2243}}^1$

素因数の和:2702

約数の個数: 16

約数和(自身を含む): 32313600

約数和(自身を除く): 11164353

約数列:

[1, 3, 7, 21, 449, 1347, 2243, 3143, 6729, 9429, 15701, 47103, 1007107, 3021321, 7049749, 21149247]

約数ペア:

[(1, 21149247), (3, 7049749), (7, 3021321), (21, 1007107), (449, 47103), (1347, 15701), (2243, 9429), (3143, 6729)]