20589016

素因数分解:

$2^3\times 7^2\times {\mathrm{53}}^1\times {\mathrm{991}}^1$

素因数の和:1064

約数の個数: 48

約数和(自身を含む): 45800640

約数和(自身を除く): 25211624

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 53, 56, 98, 106, 196, 212, 371, 392, 424, 742, 991, 1484, 1982, 2597, 2968, 3964, 5194, 6937, 7928, 10388, 13874, 20776, 27748, 48559, 52523, 55496, 97118, 105046, 194236, 210092, 367661, 388472, 420184, 735322, 1470644, 2573627, 2941288, 5147254, 10294508, 20589016]

約数ペア:

[(1, 20589016), (2, 10294508), (4, 5147254), (7, 2941288), (8, 2573627), (14, 1470644), (28, 735322), (49, 420184), (53, 388472), (56, 367661), (98, 210092), (106, 194236), (196, 105046), (212, 97118), (371, 55496), (392, 52523), (424, 48559), (742, 27748), (991, 20776), (1484, 13874), (1982, 10388), (2597, 7928), (2968, 6937), (3964, 5194)]