54640257

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{136943}}^1$

素因数の和:136972

約数の個数: 16

約数和(自身を含む): 87644160

約数和(自身を除く): 33003903

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 136943, 410829, 958601, 2601917, 2875803, 7805751, 18213419, 54640257]

約数ペア:

[(1, 54640257), (3, 18213419), (7, 7805751), (19, 2875803), (21, 2601917), (57, 958601), (133, 410829), (399, 136943)]