21334665

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:190

約数の個数: 64

約数和(自身を含む): 39739392

約数和(自身を除く): 18404727

約数列:

[1, 3, 5, 11, 15, 31, 33, 43, 55, 93, 97, 129, 155, 165, 215, 291, 341, 465, 473, 485, 645, 1023, 1067, 1333, 1419, 1455, 1705, 2365, 3007, 3201, 3999, 4171, 5115, 5335, 6665, 7095, 9021, 12513, 14663, 15035, 16005, 19995, 20855, 33077, 43989, 45105, 45881, 62565, 73315, 99231, 129301, 137643, 165385, 219945, 229405, 387903, 496155, 646505, 688215, 1422311, 1939515, 4266933, 7111555, 21334665]

約数ペア:

[(1, 21334665), (3, 7111555), (5, 4266933), (11, 1939515), (15, 1422311), (31, 688215), (33, 646505), (43, 496155), (55, 387903), (93, 229405), (97, 219945), (129, 165385), (155, 137643), (165, 129301), (215, 99231), (291, 73315), (341, 62565), (465, 45881), (473, 45105), (485, 43989), (645, 33077), (1023, 20855), (1067, 19995), (1333, 16005), (1419, 15035), (1455, 14663), (1705, 12513), (2365, 9021), (3007, 7095), (3201, 6665), (3999, 5335), (4171, 5115)]