21129042

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{449}}^1$

素因数の和:519

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 28637358

約数列:

[1, 2, 3, 6, 11, 22, 23, 31, 33, 46, 62, 66, 69, 93, 138, 186, 253, 341, 449, 506, 682, 713, 759, 898, 1023, 1347, 1426, 1518, 2046, 2139, 2694, 4278, 4939, 7843, 9878, 10327, 13919, 14817, 15686, 20654, 23529, 27838, 29634, 30981, 41757, 47058, 61962, 83514, 113597, 153109, 227194, 306218, 320137, 340791, 459327, 640274, 681582, 918654, 960411, 1920822, 3521507, 7043014, 10564521, 21129042]

約数ペア:

[(1, 21129042), (2, 10564521), (3, 7043014), (6, 3521507), (11, 1920822), (22, 960411), (23, 918654), (31, 681582), (33, 640274), (46, 459327), (62, 340791), (66, 320137), (69, 306218), (93, 227194), (138, 153109), (186, 113597), (253, 83514), (341, 61962), (449, 47058), (506, 41757), (682, 30981), (713, 29634), (759, 27838), (898, 23529), (1023, 20654), (1347, 15686), (1426, 14817), (1518, 13919), (2046, 10327), (2139, 9878), (2694, 7843), (4278, 4939)]