215948403

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{313}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 368962560

約数和(自身を除く): 153014157

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 99, 101, 207, 253, 297, 303, 313, 621, 759, 909, 939, 1111, 2277, 2323, 2727, 2817, 3333, 3443, 6831, 6969, 7199, 8451, 9999, 10329, 20907, 21597, 25553, 29997, 30987, 31613, 62721, 64791, 76659, 79189, 92961, 94839, 194373, 229977, 237567, 284517, 347743, 689931, 712701, 727099, 853551, 1043229, 2138103, 2181297, 3129687, 6543891, 7998089, 9389061, 19631673, 23994267, 71982801, 215948403]

約数ペア:

[(1, 215948403), (3, 71982801), (9, 23994267), (11, 19631673), (23, 9389061), (27, 7998089), (33, 6543891), (69, 3129687), (99, 2181297), (101, 2138103), (207, 1043229), (253, 853551), (297, 727099), (303, 712701), (313, 689931), (621, 347743), (759, 284517), (909, 237567), (939, 229977), (1111, 194373), (2277, 94839), (2323, 92961), (2727, 79189), (2817, 76659), (3333, 64791), (3443, 62721), (6831, 31613), (6969, 30987), (7199, 29997), (8451, 25553), (9999, 21597), (10329, 20907)]