31561978113

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{21673}}^1$

素因数の和:21846

約数の個数: 48

約数和(自身を含む): 48201588864

約数和(自身を除く): 16639610751

約数列:

[1, 3, 9, 43, 53, 71, 129, 159, 213, 387, 477, 639, 2279, 3053, 3763, 6837, 9159, 11289, 20511, 21673, 27477, 33867, 65019, 161809, 195057, 485427, 931939, 1148669, 1456281, 1538783, 2795817, 3446007, 4616349, 8387451, 10338021, 13849047, 49392767, 66167669, 81555499, 148178301, 198503007, 244666497, 444534903, 595509021, 733999491, 3506886457, 10520659371, 31561978113]

約数ペア:

[(1, 31561978113), (3, 10520659371), (9, 3506886457), (43, 733999491), (53, 595509021), (71, 444534903), (129, 244666497), (159, 198503007), (213, 148178301), (387, 81555499), (477, 66167669), (639, 49392767), (2279, 13849047), (3053, 10338021), (3763, 8387451), (6837, 4616349), (9159, 3446007), (11289, 2795817), (20511, 1538783), (21673, 1456281), (27477, 1148669), (33867, 931939), (65019, 485427), (161809, 195057)]