128875131

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20663}}^1$

素因数の和:20693

約数の個数: 40

約数和(自身を含む): 240033024

約数和(自身を除く): 111157893

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 231, 297, 567, 693, 891, 2079, 6237, 20663, 61989, 144641, 185967, 227293, 433923, 557901, 681879, 1301769, 1591051, 1673703, 2045637, 3905307, 4773153, 6136911, 11715921, 14319459, 18410733, 42958377, 128875131]

約数ペア:

[(1, 128875131), (3, 42958377), (7, 18410733), (9, 14319459), (11, 11715921), (21, 6136911), (27, 4773153), (33, 3905307), (63, 2045637), (77, 1673703), (81, 1591051), (99, 1301769), (189, 681879), (231, 557901), (297, 433923), (567, 227293), (693, 185967), (891, 144641), (2079, 61989), (6237, 20663)]