221440905

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{7559}}^1$

素因数の和:7611

約数の個数: 64

約数和(自身を含む): 464486400

約数和(自身を除く): 243045495

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 31, 35, 45, 63, 93, 105, 135, 155, 189, 217, 279, 315, 465, 651, 837, 945, 1085, 1395, 1953, 3255, 4185, 5859, 7559, 9765, 22677, 29295, 37795, 52913, 68031, 113385, 158739, 204093, 234329, 264565, 340155, 476217, 702987, 793695, 1020465, 1171645, 1428651, 1640303, 2108961, 2381085, 3514935, 4920909, 6326883, 7143255, 8201515, 10544805, 14762727, 24604545, 31634415, 44288181, 73813635, 221440905]

約数ペア:

[(1, 221440905), (3, 73813635), (5, 44288181), (7, 31634415), (9, 24604545), (15, 14762727), (21, 10544805), (27, 8201515), (31, 7143255), (35, 6326883), (45, 4920909), (63, 3514935), (93, 2381085), (105, 2108961), (135, 1640303), (155, 1428651), (189, 1171645), (217, 1020465), (279, 793695), (315, 702987), (465, 476217), (651, 340155), (837, 264565), (945, 234329), (1085, 204093), (1395, 158739), (1953, 113385), (3255, 68031), (4185, 52913), (5859, 37795), (7559, 29295), (9765, 22677)]