20649748

素因数分解:

$2^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{7603}}^1$

素因数の和:7711

約数の個数: 24

約数和(自身を含む): 41730752

約数和(自身を除く): 21081004

約数列:

[1, 2, 4, 7, 14, 28, 97, 194, 388, 679, 1358, 2716, 7603, 15206, 30412, 53221, 106442, 212884, 737491, 1474982, 2949964, 5162437, 10324874, 20649748]

約数ペア:

[(1, 20649748), (2, 10324874), (4, 5162437), (7, 2949964), (14, 1474982), (28, 737491), (97, 212884), (194, 106442), (388, 53221), (679, 30412), (1358, 15206), (2716, 7603)]