1666996821

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{9811}}^1$

素因数の和:9887

約数の個数: 64

約数和(自身を含む): 3014246400

約数和(自身を除く): 1347249579

約数列:

[1, 3, 7, 9, 21, 27, 29, 31, 63, 87, 93, 189, 203, 217, 261, 279, 609, 651, 783, 837, 899, 1827, 1953, 2697, 5481, 5859, 6293, 8091, 9811, 18879, 24273, 29433, 56637, 68677, 88299, 169911, 206031, 264897, 284519, 304141, 618093, 853557, 912423, 1854279, 1991633, 2128987, 2560671, 2737269, 5974899, 6386961, 7682013, 8211807, 8820089, 17924697, 19160883, 26460267, 53774091, 57482649, 61740623, 79380801, 185221869, 238142403, 555665607, 1666996821]

約数ペア:

[(1, 1666996821), (3, 555665607), (7, 238142403), (9, 185221869), (21, 79380801), (27, 61740623), (29, 57482649), (31, 53774091), (63, 26460267), (87, 19160883), (93, 17924697), (189, 8820089), (203, 8211807), (217, 7682013), (261, 6386961), (279, 5974899), (609, 2737269), (651, 2560671), (783, 2128987), (837, 1991633), (899, 1854279), (1827, 912423), (1953, 853557), (2697, 618093), (5481, 304141), (5859, 284519), (6293, 264897), (8091, 206031), (9811, 169911), (18879, 88299), (24273, 68677), (29433, 56637)]