987599879

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1\times {\mathrm{991}}^1$

素因数の和:1203

約数の個数: 32

約数和(自身を含む): 1218969600

約数和(自身を除く): 231369721

約数列:

[1, 7, 19, 59, 127, 133, 413, 889, 991, 1121, 2413, 6937, 7493, 7847, 16891, 18829, 52451, 58469, 125857, 131803, 142367, 409283, 880999, 996569, 1110911, 2391283, 7425563, 7776377, 16738981, 51978941, 141085697, 987599879]

約数ペア:

[(1, 987599879), (7, 141085697), (19, 51978941), (59, 16738981), (127, 7776377), (133, 7425563), (413, 2391283), (889, 1110911), (991, 996569), (1121, 880999), (2413, 409283), (6937, 142367), (7493, 131803), (7847, 125857), (16891, 58469), (18829, 52451)]