21608538

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:311

約数の個数: 64

約数和(自身を含む): 51874560

約数和(自身を除く): 30266022

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 113, 157, 174, 203, 226, 314, 339, 406, 471, 609, 678, 791, 942, 1099, 1218, 1582, 2198, 2373, 3277, 3297, 4553, 4746, 6554, 6594, 9106, 9831, 13659, 17741, 19662, 22939, 27318, 31871, 35482, 45878, 53223, 63742, 68817, 95613, 106446, 124187, 137634, 191226, 248374, 372561, 514489, 745122, 1028978, 1543467, 3086934, 3601423, 7202846, 10804269, 21608538]

約数ペア:

[(1, 21608538), (2, 10804269), (3, 7202846), (6, 3601423), (7, 3086934), (14, 1543467), (21, 1028978), (29, 745122), (42, 514489), (58, 372561), (87, 248374), (113, 191226), (157, 137634), (174, 124187), (203, 106446), (226, 95613), (314, 68817), (339, 63742), (406, 53223), (471, 45878), (609, 35482), (678, 31871), (791, 27318), (942, 22939), (1099, 19662), (1218, 17741), (1582, 13659), (2198, 9831), (2373, 9106), (3277, 6594), (3297, 6554), (4553, 4746)]