20201587749

素因数分解:

$3^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{421}}^1\times {\mathrm{2053}}^1$

素因数の和:2547

約数の個数: 72

約数和(自身を含む): 34683655032

約数和(自身を除く): 14482067283

約数列:

[1, 3, 7, 9, 21, 49, 53, 63, 147, 159, 371, 421, 441, 477, 1113, 1263, 2053, 2597, 2947, 3339, 3789, 6159, 7791, 8841, 14371, 18477, 20629, 22313, 23373, 26523, 43113, 61887, 66939, 100597, 108809, 129339, 156191, 185661, 200817, 301791, 326427, 468573, 761663, 864313, 905373, 979281, 1093337, 1405719, 2284989, 2592939, 3280011, 5331641, 6050191, 6854967, 7778817, 9840033, 15994923, 18150573, 42351337, 45808589, 47984769, 54451719, 127054011, 137425767, 320660123, 381162033, 412277301, 961980369, 2244620861, 2885941107, 6733862583, 20201587749]

約数ペア:

[(1, 20201587749), (3, 6733862583), (7, 2885941107), (9, 2244620861), (21, 961980369), (49, 412277301), (53, 381162033), (63, 320660123), (147, 137425767), (159, 127054011), (371, 54451719), (421, 47984769), (441, 45808589), (477, 42351337), (1113, 18150573), (1263, 15994923), (2053, 9840033), (2597, 7778817), (2947, 6854967), (3339, 6050191), (3789, 5331641), (6159, 3280011), (7791, 2592939), (8841, 2284989), (14371, 1405719), (18477, 1093337), (20629, 979281), (22313, 905373), (23373, 864313), (26523, 761663), (43113, 468573), (61887, 326427), (66939, 301791), (100597, 200817), (108809, 185661), (129339, 156191)]