128111921

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1483}}^1$

素因数の和:1581

約数の個数: 24

約数和(自身を含む): 156318624

約数和(自身を除く): 28206703

約数列:

[1, 7, 41, 43, 49, 287, 301, 1483, 1763, 2009, 2107, 10381, 12341, 60803, 63769, 72667, 86387, 425621, 446383, 2614529, 2979347, 3124681, 18301703, 128111921]

約数ペア:

[(1, 128111921), (7, 18301703), (41, 3124681), (43, 2979347), (49, 2614529), (287, 446383), (301, 425621), (1483, 86387), (1763, 72667), (2009, 63769), (2107, 60803), (10381, 12341)]