20947108

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{8221}}^1$

素因数の和:8252

約数の個数: 36

約数和(自身を含む): 45928092

約数和(自身を除く): 24980984

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 8221, 16442, 32884, 57547, 106873, 115094, 213746, 230188, 402829, 427492, 748111, 805658, 1496222, 1611316, 2992444, 5236777, 10473554, 20947108]

約数ペア:

[(1, 20947108), (2, 10473554), (4, 5236777), (7, 2992444), (13, 1611316), (14, 1496222), (26, 805658), (28, 748111), (49, 427492), (52, 402829), (91, 230188), (98, 213746), (182, 115094), (196, 106873), (364, 57547), (637, 32884), (1274, 16442), (2548, 8221)]