21589412

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{293}}^1$

素因数の和:432

約数の個数: 36

約数和(自身を含む): 41427540

約数和(自身を除く): 19838128

約数列:

[1, 2, 4, 13, 26, 52, 109, 169, 218, 293, 338, 436, 586, 676, 1172, 1417, 2834, 3809, 5668, 7618, 15236, 18421, 31937, 36842, 49517, 63874, 73684, 99034, 127748, 198068, 415181, 830362, 1660724, 5397353, 10794706, 21589412]

約数ペア:

[(1, 21589412), (2, 10794706), (4, 5397353), (13, 1660724), (26, 830362), (52, 415181), (109, 198068), (169, 127748), (218, 99034), (293, 73684), (338, 63874), (436, 49517), (586, 36842), (676, 31937), (1172, 18421), (1417, 15236), (2834, 7618), (3809, 5668)]