128811963

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{4547}}^1$

素因数の和:4647

約数の個数: 32

約数和(自身を含む): 209571840

約数和(自身を除く): 80759877

約数列:

[1, 3, 7, 19, 21, 57, 71, 133, 213, 399, 497, 1349, 1491, 4047, 4547, 9443, 13641, 28329, 31829, 86393, 95487, 259179, 322837, 604751, 968511, 1814253, 2259859, 6133903, 6779577, 18401709, 42937321, 128811963]

約数ペア:

[(1, 128811963), (3, 42937321), (7, 18401709), (19, 6779577), (21, 6133903), (57, 2259859), (71, 1814253), (133, 968511), (213, 604751), (399, 322837), (497, 259179), (1349, 95487), (1491, 86393), (4047, 31829), (4547, 28329), (9443, 13641)]