20790308

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{9643}}^1$

素因数の和:9672

約数の個数: 36

約数和(自身を含む): 46175472

約数和(自身を除く): 25385164

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 9643, 19286, 38572, 67501, 106073, 135002, 212146, 270004, 424292, 472507, 742511, 945014, 1485022, 1890028, 2970044, 5197577, 10395154, 20790308]

約数ペア:

[(1, 20790308), (2, 10395154), (4, 5197577), (7, 2970044), (11, 1890028), (14, 1485022), (22, 945014), (28, 742511), (44, 472507), (49, 424292), (77, 270004), (98, 212146), (154, 135002), (196, 106073), (308, 67501), (539, 38572), (1078, 19286), (2156, 9643)]